Blancpain Fifty Fathoms Fifty Fathoms GMT Stainless Steel / Black / Canvas

Reference 50021-12B30-52B

About this watch

The Blancpain Fifty Fathoms GMT is a masterpiece of horological excellence, boasting a rich legacy dating back to 1735. This Swiss brand has consistently pushed the boundaries of watchmaking, producing only mechanical watches that embody quality and precision. The 50021-12B30-52B model is a testament to Blancpain's commitment to craftsmanship, featuring a sleek black dial, sturdy stainless steel case, and scratch-resistant sapphire crystal. With a water resistance of 300 meters, this timepiece is an ideal companion for divers and water sports enthusiasts. At the heart lies the automatic Blancpain caliber 1315 movement, boasting a power reserve of 120 hours and features for hours, minutes, seconds, and date. The rotating bezel marked from 0-60 allows for easy tracking of dive time, while the mixed indexes and sword hands ensure readability in low light conditions. The rugged canvas strap adds a touch of casual elegance, making this watch perfect for both diving adventures and formal occasions.
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Key Features

  • Automatic Movement Caliber 1315
  • 300m Water Resistance
  • Scratch-Resistant Sapphire Crystal
  • Rotating Bezel Marked from 0-60
  • Limited Edition of 500 Units
  • Stainless Steel Case with Shiny Finish
  • Canvas Strap for Casual Elegance

Specifications

Brand
Blancpain
Family
Fifty Fathoms
Model
Fifty Fathoms GMT Stainless Steel / Black / Canvas
Reference
50021-12B30-52B
Movement
1315
Movement Features
  • Hours, Minutes, Seconds
  • Date
Case
Stainless Steel 48mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
300

Current Listings

[WTS] Blancpain Fifty Fathoms 5015 Titanium – Complete Set 2025

Blancpain Fifty Fathoms 5015 Titanium – Complete Set 2025

Blancpain - 5015 12B40 O52B · $11,500
The Blancpain Fifty Fathoms Automatique 5015 is a titanium blue dive watch with a rich history, carrying forward the design language of the original. It features a 45mm titanium case, sapphire bezel, and sunburst blue dial.

  • Condition: Excellent overall condition
  • Case Size: 45mm
  • Movement: Blancpain Caliber 1315 automatic movement
  • Power Reserve: five days
Posted at
Feb 1, 2026, 4:23 PM
Active
[WTS] Blancpain Fifty Fathoms. 40mm. Trilogy Series. $4250 only...

Blancpain Fifty Fathoms. 40mm. Trilogy Series. $4250 only...

A Blancpain Fifty Fathoms in the Trilogy Series, a 40mm watch with OEM Strap and OEM Deployant clasp.

  • Case size: 40mm diameter
  • Strap type: OEM Strap
Posted at
Jan 31, 2026, 11:18 AM
Active
[WTS] Blancpain Fifty Fathoms Bathyscaphe Rose Gold Ref: 5000-36S40-NAOA

Blancpain Fifty Fathoms Bathyscaphe Rose Gold Ref: 5000-36S40-NAOA

Blancpain - 5000-36S40-NAOA · $17,450
This is one of the original and most iconic divers of all time. The 43mm rose gold case has great wrist presence and is incredibly comfortable.

  • Condition: Excellent/near mint condition
  • Case size: 43mm diameter
  • Water resistance: 200m depth rating
Posted at
Jan 25, 2026, 10:59 AM
Active
[WTS] Blancpain Fifty Fathoms. Trilogy. 40mm. $3999 only !! Bracelet included.

Blancpain Fifty Fathoms. Trilogy. 40mm. $3999 only !! Bracelet included.

The Blancpain Fifty Fathoms Trilogy is a 40mm watch, deployed on an aftermarket rubber strap and including its original bracelet. The seller mentions a minor issue with one endlink being broken.

  • Condition: Used, with minor issue (1 endlink is broken)
  • Case size: 40mm
  • Bracelet included: yes
  • Strap type: aftermarket rubber strap
Posted at
Jan 24, 2026, 4:26 PM
Active
[WTS] Blancpain Fifty Fathoms. 40mm. Trilogy Series. $4350 only...

Blancpain Fifty Fathoms. 40mm. Trilogy Series. $4350 only...

A Blancpain Fifty Fathoms from the Trilogy Series, a 40mm watch available for sale.

  • Size: 40mm diameter
  • Strap: OEM strap
  • Clasp: OEM deployant clasp
Posted at
Jan 24, 2026, 11:16 AM
Active
[WTS] Blancpain Fifty Fathoms 5015 Titanium – Complete Set 2025

Blancpain Fifty Fathoms 5015 Titanium – Complete Set 2025

Blancpain - 5015 12B40 O52B · $11,500
The Blancpain Fifty Fathoms is a dive watch with a titanium case, sapphire bezel, and sunburst blue dial. It features an automatic movement with a power reserve of five days and a water resistance of 300 meters.

  • Condition: Excellent overall condition
  • Case Size: 45mm diameter
  • Movement: Blancpain Caliber 1315 automatic movement
  • Power Reserve: five days
Posted at
Jan 22, 2026, 11:49 AM
Active
[WTS] Blancpain Fifty Fathoms 70th Anniversary Act 3 5901-5630-NANA

Blancpain Fifty Fathoms 70th Anniversary Act 3 5901-5630-NANA

Blancpain - 5901-5630-NANA · $29,550
A Blancpain Fifty Fathoms 70th Anniversary Act 3 watch, part of a limited edition series with only 555 available worldwide. This timepiece includes the boxes, additional items, and papers dated October 27th, 2023.

  • Condition: Very good condition
  • Edition size: 555 units worldwide
  • Limited edition: true
  • Size: 40mm diameter
Posted at
Jan 22, 2026, 1:22 AM
Active
[WTS] Blancpain Fifty Fathoms Titaniim 45mm 5015-12b30-b52a

Blancpain Fifty Fathoms Titaniim 45mm 5015-12b30-b52a

Up for sale is my 45mm titanium Blancpain Fifty Fathoms, full set from 2022. Comes on OEM black sailcloth.

  • Condition: excellent
  • Case Material: titanium
  • Size: 45mm diameter
  • Bezel Material: sapphire
Posted at
Jan 21, 2026, 10:14 AM
Active
[WTS] 2024 Blancpain Fifty Fathoms Automatique 45mm Titanium

2024 Blancpain Fifty Fathoms Automatique 45mm Titanium

Blancpain - 5015-12B40-052A · $11,878
The Blancpain Fifty Fathoms Automatique is a modern dive watch that preserves the legendary DNA of its original design while delivering refined performance. The 45mm titanium case offers strong wrist presence, and it's paired with a sunburst blue dial and unidirectional blue sapphire bezel for exceptional depth and durability.

  • Condition: Excellent condition with light signs of wear consistent with careful ownership
  • Case size: 45mm
  • Case material: Titanium
  • Dial: Sunburst blue
Posted at
Jan 21, 2026, 9:59 AM
Active