Blancpain Fifty Fathoms Fifty Fathoms Stainless Steel / Blue / Blue NATO

Reference 5015-12B40-NAOA

About this watch

The Blancpain Fifty Fathoms 5015-12B40-NAOA is an exceptional luxury watch that embodies the spirit of adventure and elegance. With its rich history and impeccable design, this timepiece is a statement piece that seamlessly transitions from underwater exploration to formal dinners. The automatic movement showcases Blancpain's commitment to innovation and precision, featuring a power reserve of 120 hours. The striking blue dial and durable blue NATO strap add an oceanic touch, while the rotating bezel allows for precise timing. With a water resistance of 300 meters, this watch is built for serious diving. It's a legacy of craftsmanship, style, and functionality that promises to be a loyal companion for years to come.
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Key Features

  • Blancpain caliber 1315 automatic movement
  • 45 mm stainless steel case with rotating bezel and sapphire glass
  • 300 meters water resistance
  • 120-hour power reserve
  • Striking blue dial with stick indexes and sword hands
  • Durable blue NATO strap with quick adjustments
  • Glucydur free sprung balance for enhanced accuracy

Specifications

Brand
Blancpain
Family
Fifty Fathoms
Model
Fifty Fathoms Stainless Steel / Blue / Blue NATO
Reference
5015-12B40-NAOA
Movement
1315
Movement Features
  • Hours, Minutes, Seconds
  • Date
Case
Stainless Steel 45mm
Dial Color
Blue
Crystal
Sapphire
Water Resistance
300

Current Listings

[WTS] Swatch X Blancpain Fifty Fathoms Antarctic Ocean

Swatch X Blancpain Fifty Fathoms Antarctic Ocean

This is a completely full set of the Swatch X Blancpain Fifty Fathoms Antarctic Ocean, a unique collaboration between Swatch and Blancpain.

  • Year: 2024
Posted at
Feb 22, 2026, 4:18 PM
Active
[WTS] Blancpain Fifty Fathoms Titanium 42.3mm 5010 12B40 O52A – 2024 – Blue Dial – Excellent Condition Full Set + Extra Strap

Blancpain Fifty Fathoms Titanium 42.3mm 5010 12B40 O52A – 2024 – Blue Dial – Excellent Condition Full Set + Extra Strap

Blancpain - 5010-12B40-O52A · $14,500
The watch features a 42.3mm titanium case and buckle, blue sunburst dial with luminous markers, and a blue unidirectional bezel with sapphire insert.

  • Condition: Excellent condition
  • Case material: Titanium
  • Diameter: 42.3mm
  • Bezel material: Sapphire
Posted at
Feb 22, 2026, 11:50 AM
Active
[WTS] Blancpain Fifty Fathoms – Iconic Diver – Titanium – 2025 Set

Blancpain Fifty Fathoms – Iconic Diver – Titanium – 2025 Set

Blancpain - 5015 12B40 O52A · $11,500
The Blancpain Fifty Fathoms is an iconic diver watch with a rich history, introduced in the early 1950s as the first modern professional dive watch. It features a titanium case, sapphire bezel, and deep sunburst blue dial. The watch comes with a sail-canvas blue fabric strap and Blancpain Caliber 1315 automatic movement.

  • Condition: Excellent overall condition
  • Case size: 45mm diameter
  • Water resistance: 300m depth rating
  • Movement: Blancpain Caliber 1315 automatic with silicon balance spring
Posted at
Feb 20, 2026, 12:23 PM
Active
[WTS] Blancpain Fifty Fathoms Bathyscaphe 5000-1110-B52A 43mm Box Papers 2020

Blancpain Fifty Fathoms Bathyscaphe 5000-1110-B52A 43mm Box Papers 2020

The Blancpain Fifty Fathoms Bathyscaphe is a stainless steel watch with a metallic grey sunray dial and automatic Calibre 1315 movement. It features luminous dot hour markers, baton hands, and 300m water resistance.

  • Condition: Excellent, near mint condition
  • Case size: 43mm diameter
  • Movement: Calibre 1315, automatic
  • Power reserve: 120 hours
Posted at
Feb 19, 2026, 11:58 AM
Active
[WTS] 2022 Blancpain Fifty Fathoms Bathyscaphe Flyback Chrono - 5200-1110-B52A - Full Set

2022 Blancpain Fifty Fathoms Bathyscaphe Flyback Chrono - 5200-1110-B52A - Full Set

Blancpain - 5200-1110-B52A · $10,250
The Blancpain Fifty Fathoms Bathyscaphe Chrono 5200 Flyback is a chronograph masterpiece with a simple, satin finished case and sunburst meteor grey dial.

  • Condition: Excellent pre-owned condition with minor signs of visible wear
  • Case Size: 43mm diameter
  • Movement Frequency: 5 Hz / 36,000 vph
  • Power Reserve: ~50-hour power reserve
Posted at
Feb 18, 2026, 1:24 PM
Active
[WTS] 2020 Blancpain 5015-1130-52B Fifty Fathoms Steel Blue Dial 45mm Men's Watch - $8,995

2020 Blancpain 5015-1130-52B Fifty Fathoms Steel Blue Dial 45mm Men's Watch - $8,995

Blancpain - 5015-1130-52B · $8,995
2020 Blancpain Fifty Fathoms watch with a steel blue dial, designed for men, and featuring a 45mm case size.

  • Case diameter: 45mm
Posted at
Feb 17, 2026, 9:38 AM
Active
[WTS] Blancpain Fifty Fathoms Ceramic - 43mm - Box & Papers

Blancpain Fifty Fathoms Ceramic - 43mm - Box & Papers

The watch is a Blancpain Fifty Fathoms Bathyscaphe with a 43mm ceramic case, sunburst black dial, and automatic movement.

  • Condition: Great condition, some minor marks on AR coating
  • Case size: 43mm diameter
  • Movement type: Automatic
Posted at
Feb 16, 2026, 9:11 AM
Active
[WTS] Blancpain Fifty Fathoms Titanium 42.3mm 5010 12B40 O52A – 2024 – Blue Dial – Excellent Condition Full Set

Blancpain Fifty Fathoms Titanium 42.3mm 5010 12B40 O52A – 2024 – Blue Dial – Excellent Condition Full Set

Blancpain - 5010-12B40-O52A · $14,500
This Blancpain Fifty Fathoms Ref. 5010-12B40-O52A is a titanium case watch featuring a blue sunburst dial and unidirectional bezel with sapphire insert.

  • Condition: Excellent Condition
  • Case material: titanium
  • Diameter: 42.3mm
  • Case back material: titanium
Posted at
Feb 15, 2026, 1:06 PM
Active
[WTS] Blancpain Fifty Fathoms Ceramic - 43mm - Box & Papers

Blancpain Fifty Fathoms Ceramic - 43mm - Box & Papers

This Blancpain Fifty Fathoms Ceramic features a 43mm ceramic case, sunburst black dial, and automatic movement. The watch is in amazing pre-owned condition with pristine case and bezel.

  • Condition: Pre-owned with minor signs of wear
  • Case Size: 43mm diameter
  • Movement Type: Automatic
  • Strap Material: Sail-canvas
Posted at
Feb 14, 2026, 9:52 AM
Active