# Sirena 68 — Complete OKF Technical Datasheet
- **Manufacturer**: SIRENA YACHTS (HQ & Manufacturer. Sirena Marine Denizcilik Sanayi ve Ticaret A.Ş.)
- **Affiliated Ecosystem Organization**: Sirena Global Ecosystem (Sirena Marine Denizcilik Sanayi ve Ticaret A.Ş. | Code: MW-SIRE-3096 | URL: https://marineworld.city/companies/sirena-global-ecosystem)
- **Company Profile**: https://marineworld.city/companies/sirena-yachts
- **Product URL**: https://marineworld.city/products/sirena-68
- **OKF Seal ID**: MW-SEAL-SIRENA-269980 (VERIFIED)
- **OKF SHA-256 Hash**: sha256-5b7bbe1e1a18827f24f
- **Category**: Luxury Motor Yachts
- **Price / Commercial Terms**: Commercial RFQ / Direct Inquiry (EUR - Direct Manufacturer Quotation)
- **Incoterms**: EXW Shipyard | **Warranty**: Standard shipyard warranty | **Lead Time**: According to shipyard production schedule
- **Certifications**: CE Category A (Ocean), ISO 8666 (Small Craft - Principal Data)
- **Standards**: ISO 8666 (Small Craft - Principal Data)
- **Applications**: Offshore & Coastal Long-Range Cruising, Private Luxury Liveaboard Yachting, Extended Blue Water Passages, VIP Hospitality & Yacht Chartering

## Description
The Sirena 68 is an ocean-going motor yacht designed for efficiency, comfort, and performance. Featuring naval architecture and exterior styling by Frers Naval Architecture & Engineering and interior decor by Cor D. Rover Design Studio, the vessel incorporates a hybrid carbon fiber superstructure that significantly lowers the center of gravity while increasing stability and structural rigidity. Interior layouts feature flexible accommodation options including a full-beam master suite with his-and-hers heads, bow VIP cabin, twin guest cabin, and optional aft crew quarters, alongside curated decor palettes (Serenity, Inspiration, and Elegance).

## OKF Technical Specifications (46 Parameters)
- **Gray Water Tank**: 400 lt / 105 US gal
- **Heads (Bathrooms)**: 3 En-suite + 1 Crew Head
- **Interior Palette - Inspiration**: Light grey zen tones, open airy surfaces, soft textures.
- **Height Above Waterline (Ha)**: 6.75 m / 22' 2" (excl. top gear)
- **Hull Beam (BHMAX ISO 8666)**: 5.9 m / 19' 4"
- **Length Overall (LOA)**: 21.4 m / 70' 0"
- **Length (LOA)**: 21.4 m / 70' 0"
- **Standard Engines**: 2 x Volvo D13 (900 HP each)
- **Max Speed (1000 HP opt)**: 27.7 knots
- **Naval Architecture & Exterior**: Frers Naval Architecture & Engineering
- **Flybridge Layout**: Widest in class with wet bar, outdoor galley, expansive U-seating, aft sun deck, and hardtop with sunroof.
- **Carbon Hybrid Superstructure**: Carbon fiber pillars, hardtop & deck reduce top weight, lowering center of gravity for maximum sea stability, fuel efficiency, and structural rigidity.
- **Builder / Yard**: Sirena Marine (Bursa / Türkiye)
- **Displacement (Light Craft - MLCC)**: 40.27 tonnes (88,780 lbs)
- **Max Draft (TMAX @ full load)**: 1.35 m / 4' 5"
- **Fresh Water Tank**: 1,400 lt / 370 US gal
- **Diesel Tank Capacity**: 5,250 lt / 1,387 US gal
- **Crew Quarters (Aft)**: Direct transom/swim platform access, twin berths, private head with integrated shower, and storage.
- **Twin Guest Cabin**: Two longitudinal single berths with nightstand, storage lockers, and dedicated en-suite head.
- **Beds / Berths**: 6 Guests + 2 Crew
- **Economy Cruising Speed**: 10.0 knots (Cons: 38 l/hr / 10 gal/hr)
- **Main Saloon & Galley Layout**: Open social galley connecting directly to cockpit, full-height floor-to-ceiling windows, and transparent bulwark cutouts.
- **Displacement (Loaded - MLCD)**: 47.17 tonnes (103,992 lbs)
- **Optional Engines**: 2 x Volvo D13 (1,000 HP each)
- **Interior Palette - Serenity**: Honey-toned woods, semi-gloss lacquers, cognac leather.
- **Marine Gears & Reduction**: ZF 400 IV (Ratio: 1.964:1)
- **Hull Length (LH ISO 8666)**: 19.9 m / 65' 4"
- **Construction Material**: GRP / Carbon Hybrid Fiber
- **Interior Decor Studio**: Cor D. Rover Design Studio (Netherlands)
- **VIP Forward Stateroom**: Spacious bow suite with island queen berth, full hanging wardrobe, dressing table, and private luxury en-suite bathroom.
- **Foredeck (Bow) Layout**: Multi-zone sunbathing island with forward settee, cocktail table, and optional jacuzzi integration.
- **Beam / Width**: 5.9 m / 19' 4"
- **Cruising Range (@ 10 kn, 10% res.)**: Approx. 1,200 NM
- **Transmission & Max Propeller**: V-Drive / 800 mm (31") diameter
- **Owner's Master Stateroom**: Full-beam amidships suite featuring his-and-hers separate head compartments connected by a large central walk-in shower, dedicated vanity desk, and expansive hull glazing.
- **Design Draft**: 1.35 m / 4' 5"
- **Hull Type & Certification**: Semi-Displacement / CE Cat A (Ocean)
- **Cabins**: 3 Standard + 1 Optional Crew Cabin
- **Waterline Length (LWL @ full load)**: 19.8 m / 64' 11"
- **Service Speed / RPM**: 26.0 knots
- **Interior Palette - Elegance**: Dark masculine wood, anthracite lacquer, crisp white leathers.
- **Performance Reference Conditions**: Beaufort 1, Douglas 1 sea conditions (air < 25°C, seawater 15°C, 103,250 Pa) with 2 persons on board, 25% fuel, empty tanks, clean hull, running gear, propellers, and rudders.
- **Cruising Speed**: 16.0 knots (Cons: 130 l/hr / 34 gal/hr)
- **Black Water Tank**: 450 lt / 120 US gal
- **Max Speed (900 HP std)**: 26.0 knots
- **Height / Depth**: 6.75 m / 22' 2" (excl. top gear)

## Full OKF Engineering Document
---
okf_version: "1.0"
document_id: "okf-offering-prod-sirena-yachts-1793277277214"
title: "Sirena 68"
entity_type: "PRODUCT"
company_id: "sirena-yachts"
company_slug: ""
offering_id: "prod-sirena-yachts-1793277277214"
offering_slug: "sirena-68"
knowledge_catalog_seal:
  sealed: true
  seal_id: "MW-SEAL-SIRENA-269980"
  sealed_at: "2026-10-29T14:54:41.743Z"
  hash_sha256: "sha256-5b7bbe1e1a18827f24f"
  authority: "Google Knowledge Catalog / MarineWorld Trust Layer"
  status: "VERIFIED"
lineage:
  source_origin: "GOOGLE_DRIVE"
  original_file_name: "Sirena68TechnicalSpecifications.pdf"
  ingested_at: "2026-10-29T14:54:41.743Z"
  enrichment_engine: "Gemini-3.6-Flash / OKF-Enrichment-Agent"
confidence_score: 0.99
classifications:
  - "TECHNICAL"
certifications:
  - "CE Category A (Ocean)"
standards:
  - "ISO 8666 (Small Craft - Principal Data)"
commercial:
  price: "."
  currency: "EUR"
  pricing_model: "UPON_REQUEST"
grounding_rules:
  hallucination_prevention: "STRICT_SEALED"
  allow_external_inference: false
  auto_sync_with_drive: true
---

# Sirena 68

## 1. Executive Overview
An evolution of the renowned Sirena line, the Sirena 68 combines a dual-mode semi-displacement hull engineered by Germán Frers with sophisticated Dutch interior design by Cor D. Rover. Utilizing a GRP/carbon hybrid superstructure, she delivers remarkable long-range efficiency (~1,200 NM at 10 knots) alongside exhilarating speeds up to 27.7 knots.

## 2. Technical Specifications & Verified Parameters

| Parameter | Value | Unit | Category | Confidence |
| :--- | :--- | :--- | :--- | :--- |
| Marine Gears & Reduction | ZF 400 IV (Ratio: 1.964:1) | - | GENERAL | 98% |
| Length Overall (LOA) | 21.4 m / 70' 0" | - | GENERAL | 98% |
| Foredeck (Bow) Layout | Multi-zone sunbathing island with forward settee, cocktail table, and optional jacuzzi integration. | - | GENERAL | 98% |
| Height / Depth | 6.75 m / 22' 2" (excl. top gear) | - | GENERAL | 98% |
| Max Speed (1000 HP opt) | 27.7 knots | - | GENERAL | 98% |
| Interior Decor Studio | Cor D. Rover Design Studio (Netherlands) | - | GENERAL | 98% |
| Hull Beam (BHMAX ISO 8666) | 5.9 m / 19' 4" | - | GENERAL | 98% |
| Transmission & Max Propeller | V-Drive / 800 mm (31") diameter | - | GENERAL | 98% |
| Diesel Tank Capacity | 5,250 lt / 1,387 US gal | - | GENERAL | 98% |
| Cabins | 3 Standard + 1 Optional Crew Cabin | - | GENERAL | 98% |
| Crew Quarters (Aft) | Direct transom/swim platform access, twin berths, private head with integrated shower, and storage. | - | GENERAL | 98% |
| Hull Type & Certification | Semi-Displacement / CE Cat A (Ocean) | - | GENERAL | 98% |
| Waterline Length (LWL @ full load) | 19.8 m / 64' 11" | - | GENERAL | 98% |
| Fresh Water Tank | 1,400 lt / 370 US gal | - | GENERAL | 98% |
| Performance Reference Conditions | Beaufort 1, Douglas 1 sea conditions (air < 25°C, seawater 15°C, 103,250 Pa) with 2 persons on board, 25% fuel, empty tanks, clean hull, running gear, propellers, and rudders. | - | GENERAL | 98% |
| Max Draft (TMAX @ full load) | 1.35 m / 4' 5" | - | GENERAL | 98% |
| Cruising Range (@ 10 kn, 10% res.) | Approx. 1,200 NM | - | GENERAL | 98% |
| Max Speed (900 HP std) | 26.0 knots | - | GENERAL | 98% |
| Gray Water Tank | 400 lt / 105 US gal | - | GENERAL | 98% |
| Owner's Master Stateroom | Full-beam amidships suite featuring his-and-hers separate head compartments connected by a large central walk-in shower, dedicated vanity desk, and expansive hull glazing. | - | GENERAL | 98% |
| Hull Length (LH ISO 8666) | 19.9 m / 65' 4" | - | GENERAL | 98% |
| Design Draft | 1.35 m / 4' 5" | - | GENERAL | 98% |
| Standard Engines | 2 x Volvo D13 (900 HP each) | - | GENERAL | 98% |
| Black Water Tank | 450 lt / 120 US gal | - | GENERAL | 98% |
| Interior Palette - Elegance | Dark masculine wood, anthracite lacquer, crisp white leathers. | - | GENERAL | 98% |
| Twin Guest Cabin | Two longitudinal single berths with nightstand, storage lockers, and dedicated en-suite head. | - | GENERAL | 98% |
| Displacement (Loaded - MLCD) | 47.17 tonnes (103,992 lbs) | - | GENERAL | 98% |
| Cruising Speed | 16.0 knots (Cons: 130 l/hr / 34 gal/hr) | - | GENERAL | 98% |
| Naval Architecture & Exterior | Frers Naval Architecture & Engineering | - | GENERAL | 98% |
| Service Speed / RPM | 26.0 knots | - | GENERAL | 98% |
| Interior Palette - Serenity | Honey-toned woods, semi-gloss lacquers, cognac leather. | - | GENERAL | 98% |
| Optional Engines | 2 x Volvo D13 (1,000 HP each) | - | GENERAL | 98% |
| Main Saloon & Galley Layout | Open social galley connecting directly to cockpit, full-height floor-to-ceiling windows, and transparent bulwark cutouts. | - | GENERAL | 98% |
| Economy Cruising Speed | 10.0 knots (Cons: 38 l/hr / 10 gal/hr) | - | GENERAL | 98% |
| Heads (Bathrooms) | 3 En-suite + 1 Crew Head | - | GENERAL | 98% |
| Interior Palette - Inspiration | Light grey zen tones, open airy surfaces, soft textures. | - | GENERAL | 98% |
| Flybridge Layout | Widest in class with wet bar, outdoor galley, expansive U-seating, aft sun deck, and hardtop with sunroof. | - | GENERAL | 98% |
| Length (LOA) | 21.4 m / 70' 0" | - | GENERAL | 98% |
| Beam / Width | 5.9 m / 19' 4" | - | GENERAL | 98% |
| Construction Material | GRP / Carbon Hybrid Fiber | - | GENERAL | 98% |
| Builder / Yard | Sirena Marine (Bursa / Türkiye) | - | GENERAL | 98% |
| VIP Forward Stateroom | Spacious bow suite with island queen berth, full hanging wardrobe, dressing table, and private luxury en-suite bathroom. | - | GENERAL | 98% |
| Beds / Berths | 6 Guests + 2 Crew | - | GENERAL | 98% |
| Height Above Waterline (Ha) | 6.75 m / 22' 2" (excl. top gear) | - | GENERAL | 98% |
| Carbon Hybrid Superstructure | Carbon fiber pillars, hardtop & deck reduce top weight, lowering center of gravity for maximum sea stability, fuel efficiency, and structural rigidity. | - | GENERAL | 98% |
| Displacement (Light Craft - MLCC) | 40.27 tonnes (88,780 lbs) | - | GENERAL | 98% |
| Dimension: height | 6.75 m / 22' 2" (excl. top gear) | - | PHYSICAL | 98% |
| Dimension: draft | 1.35 m / 4' 5" | - | PHYSICAL | 98% |
| Dimension: beam | 5.9 m / 19' 4" | - | PHYSICAL | 98% |
| Dimension: length | 21.4 m / 70' 0" | - | PHYSICAL | 98% |
| Dimension: speed | 26.0 knots | - | PHYSICAL | 98% |

## 3. Compliance, Class Standards & Accreditations

- **Verified Certification**: CE Category A (Ocean)

## 4. Engineering Standards & Regulatory Directives

- **Standard**: ISO 8666 (Small Craft - Principal Data)

## 5. Ingested PDF Technical Datasheets & Source Records

### 5.1 Sirena68TechnicalSpecifications
- **File**: `Sirena68TechnicalSpecifications.pdf` (0.0 MB)
- **Summary**: An evolution of the renowned Sirena line, the Sirena 68 combines a dual-mode semi-displacement hull engineered by Germán Frers with sophisticated Dutch interior design by Cor D. Rover. Utilizing a GRP/carbon hybrid superstructure, she delivers remarkable long-range efficiency (~1,200 NM at 10 knots) alongside exhilarating speeds up to 27.7 knots.

```text
Sirena 68
An evolution of the renowned Sirena line, the Sirena 68 combines a dual-mode semi-displacement hull engineered by Germán Frers with sophisticated Dutch interior design by Cor D. Rover. Utilizing a GRP/carbon hybrid superstructure, she delivers remarkable long-range efficiency (~1,200 NM at 10 knots) alongside exhilarating speeds up to 27.7 knots.
The Sirena 68 is an ocean-going motor yacht designed for efficiency, comfort, and performance. Featuring naval architecture and exterior styling by Frers Naval Architecture & Engineering and interior decor by Cor D. Rover Design Studio, the vessel incorporates a hybrid carbon fiber superstructure that significantly lowers the center of gravity while increasing stability and structural rigidity. Interior layouts feature flexible accommodation options including a full-beam master suite with his-and-hers heads, bow VIP cabin, twin guest cabin, and optional aft crew quarters, alongside curated decor palettes (Serenity, Inspiration, and E
...[truncated]
```

## 6. Visual Media & Verified Figures

- ![Sirena 68](https://firebasestorage.googleapis.com/v0/b/uphi-marineworld.firebasestorage.app/o/companies%2Fsirena-yachts%2Fofferings%2Fprod-sirena-yachts-1793277277214%2F1793285217681_ranab_Ekran_Resmi_2026-10-29_14.59.57.png?alt=media&token=280465a9-cdd3-4393-b9e8-c16e137e7c00)
- ![Sirena 68](https://firebasestorage.googleapis.com/v0/b/uphi-marineworld.firebasestorage.app/o/companies%2Fsirena-yachts%2Fofferings%2Fprod-sirena-yachts-1793277277214%2F1793285186390_ykwzd_Ekran_Resmi_2026-10-29_14.59.40.png?alt=media&token=d03bb7f3-a8f7-41ed-a807-5866dc0572b7)
- ![Sirena 68](https://firebasestorage.googleapis.com/v0/b/uphi-marineworld.firebasestorage.app/o/companies%2Fsirena-yachts%2Fofferings%2Fprod-sirena-yachts-1793277277214%2F1793285291318_bw0eu_Ekran_Resmi_2026-10-29_15.00.18.png?alt=media&token=47fc7a31-601c-47b5-abb9-debca317ba55)
- ![Sirena 68](https://firebasestorage.googleapis.com/v0/b/uphi-marineworld.firebasestorage.app/o/companies%2Fsirena-yachts%2Fofferings%2Fprod-sirena-yachts-1793277277214%2F1793285375732_r78gs_Ekran_Resmi_2026-10-29_15.02.09.png?alt=media&token=dbd7ff55-6351-4f8b-a917-cff775120148)
- ![Sirena 68](https://firebasestorage.googleapis.com/v0/b/uphi-marineworld.firebasestorage.app/o/companies%2Fsirena-yachts%2Fofferings%2Fprod-sirena-yachts-1793277277214%2F1793285325079_v6g5r_Ekran_Resmi_2026-10-29_15.00.34.png?alt=media&token=b1bc7192-3a6e-4f66-b846-bb81891db60a)
- ![Sirena 68](https://firebasestorage.googleapis.com/v0/b/uphi-marineworld.firebasestorage.app/o/companies%2Fsirena-yachts%2Fofferings%2Fprod-sirena-yachts-1793277277214%2F1793285152006_tgz4q_Ekran_Resmi_2026-10-29_14.59.19.png?alt=media&token=8c623a98-986b-4160-bbe2-75d7f487419a)
- ![Sirena 68](https://firebasestorage.googleapis.com/v0/b/uphi-marineworld.firebasestorage.app/o/companies%2Fsirena-yachts%2Fofferings%2Fprod-sirena-yachts-1793277277214%2F1793285352360_1264n_Ekran_Resmi_2026-10-29_15.00.56.png?alt=media&token=e8421ba8-3b92-4303-ad58-6413e8dca820)
- ![Sirena 68](https://firebasestorage.googleapis.com/v0/b/uphi-marineworld.firebasestorage.app/o/companies%2Fsirena-yachts%2Fofferings%2Fprod-sirena-yachts-1793277277214%2F1793285385918_domxx_Ekran_Resmi_2026-10-29_15.02.24.png?alt=media&token=dc2fb57a-2c5c-4ca7-b79f-9d9b22d970ad)
- ![Sirena 68](https://firebasestorage.googleapis.com/v0/b/uphi-marineworld.firebasestorage.app/o/companies%2Fsirena-yachts%2Fofferings%2Fprod-sirena-yachts-1793277277214%2F1793285421581_39yhs_Ekran_Resmi_2026-10-29_15.02.44.png?alt=media&token=f4dc87ca-9226-4976-a6e4-97b018998a24)
- ![Sirena 68](https://firebasestorage.googleapis.com/v0/b/uphi-marineworld.firebasestorage.app/o/companies%2Fsirena-yachts%2Fofferings%2Fprod-sirena-yachts-1793277277214%2F1793285494386_siak2_Ekran_Resmi_2026-10-29_15.03.17.png?alt=media&token=3823bbde-0b56-428d-a115-1e8f706db834)
- ![Sirena 68](https://firebasestorage.googleapis.com/v0/b/uphi-marineworld.firebasestorage.app/o/companies%2Fsirena-yachts%2Fofferings%2Fprod-sirena-yachts-1793277277214%2F1793285463491_0llfl_Ekran_Resmi_2026-10-29_15.03.04.png?alt=media&token=42fd9d05-e196-4b8f-b572-37f24fbf6ee3)
- ![Sirena 68](https://firebasestorage.googleapis.com/v0/b/uphi-marineworld.firebasestorage.app/o/companies%2Fsirena-yachts%2Fofferings%2Fprod-sirena-yachts-1793277277214%2F1793285527577_bh9jp_Ekran_Resmi_2026-10-29_15.03.30.png?alt=media&token=116fbfa1-f970-4dd6-aff3-9525b7040553)
- ![Sirena 68](https://firebasestorage.googleapis.com/v0/b/uphi-marineworld.firebasestorage.app/o/companies%2Fsirena-yachts%2Fofferings%2Fprod-sirena-yachts-1793277277214%2F1793285558469_i39s2_Ekran_Resmi_2026-10-29_15.03.45.png?alt=media&token=405f8073-3ef5-4e86-af79-2d8ad3f4e66c)
- ![Sirena 68](https://firebasestorage.googleapis.com/v0/b/uphi-marineworld.firebasestorage.app/o/companies%2Fsirena-yachts%2Fofferings%2Fprod-sirena-yachts-1793277277214%2F1793285602372_la41z_Ekran_Resmi_2026-10-29_15.03.59.png?alt=media&token=8fa1289e-2dbf-463e-9887-0552997df235)
- ![Sirena 68](https://firebasestorage.googleapis.com/v0/b/uphi-marineworld.firebasestorage.app/o/companies%2Fsirena-yachts%2Fofferings%2Fprod-sirena-yachts-1793277277214%2F1793285624646_u30hw_Ekran_Resmi_2026-10-29_15.04.14.png?alt=media&token=3126d1ef-2ad0-4a2e-9161-74da4bf8221a)
- ![Sirena 68](https://firebasestorage.googleapis.com/v0/b/uphi-marineworld.firebasestorage.app/o/companies%2Fsirena-yachts%2Fofferings%2Fprod-sirena-yachts-1793277277214%2F1793285637155_9ud3p_Ekran_Resmi_2026-10-29_15.04.31.png?alt=media&token=b2219b2e-2300-4755-804f-e3e7d366a4a8)
- ![Sirena 68](https://firebasestorage.googleapis.com/v0/b/uphi-marineworld.firebasestorage.app/o/companies%2Fsirena-yachts%2Fofferings%2Fprod-sirena-yachts-1793277277214%2F1793285651282_puthn_Ekran_Resmi_2026-10-29_15.04.48.png?alt=media&token=2c75b8e8-3a75-415c-9c6a-87aede6e44c4)

## 7. Commercial Framework & Delivery Terms

- **Base Price**: . EUR
- **Pricing Model**: UPON_REQUEST

## 8. Operational Boundaries & Application Scope

- Offshore & Coastal Long-Range Cruising
- Private Luxury Liveaboard Yachting
- Extended Blue Water Passages
- VIP Hospitality & Yacht Chartering

## 9. Google Knowledge Catalog Lineage & Trust Verification

- **Seal ID**: `MW-SEAL-SIRENA-269980`
- **Digest**: `sha256-5b7bbe1e1a18827f24f`
- **Source Origin**: `GOOGLE_DRIVE` (Sirena68TechnicalSpecifications.pdf)
- **Verification Authority**: Google Knowledge Catalog / MarineWorld Trust Layer