Tudor Black Bay Heritage Black Bay Ceramic One for Only Watch

Reference 7921/001CN

About this watch

The Tudor Heritage Black Bay Ceramic One for Only Watch is a masterpiece that combines style, functionality, and heritage in one stunning package. With its sleek black ceramic case and 41mm diameter, this watch exudes modern sophistication while being durable and lightweight due to its titanium, ceramic, and stainless steel construction. The PVD coating adds an extra layer of protection without compromising the sleek finish. At the heart of this timepiece is the Tudor caliber MT5602, a certified COSC automatic movement that beats at 4Hz, ensuring precision and reliability. With a power reserve of 70 hours, you can forget to wind it over the weekend and still expect it to tick away come Monday morning. This watch boasts an impressive water resistance of 200 meters, making it suitable for diving as well as everyday wear. The rotating bezel is functional and designed for divers, while the black dial with stick and dot indexes is easy to read in challenging lighting conditions. When you strap on this watch, you'll be pleasantly surprised by its comfort and weight. As a one-of-a-kind piece, it's not just a timepiece but also a piece of history, telling a story and having intrinsic value. This limited edition watch reflects Tudor's commitment to quality and innovation, making it a worthy investment for watch enthusiasts and collectors.
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Key Features

  • Tudor caliber MT5602 automatic movement
  • Ceramic case with PVD coating
  • 200m water resistance
  • 41mm diameter
  • Rotating dive bezel
  • Black dial with stick and dot indexes
  • Proprietary hands

Specifications

Brand
Tudor
Family
Black Bay
Model
Heritage Black Bay Ceramic One for Only Watch
Reference
7921/001CN
Movement Features
  • Hours, Minutes, Seconds
  • Chronometer
Case
41mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
200

Current Listings

[WTS] Tudor Black Bay Pro 79470 COMPLETE SET 2025 + EXTRA OEM STRAP

Tudor Black Bay Pro 79470 COMPLETE SET 2025 + EXTRA OEM STRAP

Tudor - 79470 · $4,250
A Tudor Black Bay Pro with a white dial and stainless steel case. This watch comes with the complete set warranty card dated 2025, featuring a quick-release hybrid strap.

  • Condition: Excellent condition with barely any signs of wear
  • Warranty Card Date: 2025
  • Strap Options: stainless steel and quick release hybrid
Posted at
Feb 6, 2026, 2:16 PM
Active
[WTS] 2023 Tudor Black Bay Heritage Cookie Monster Full Set 3k

2023 Tudor Black Bay Heritage Cookie Monster Full Set 3k

Tudor - M79230B-0008 · $3,000
A 2023 Tudor Black Bay Heritage Cookie Monster full set, including a clean watch and all original accessories.

  • Condition: Pre-owned, clean crystal with small knick on bezel by the 7 o'clock marker
  • Length: fits 7.5 inch wrist
  • Included: full set with inner box, outer box, booklets, warranty card, and hangtag
Posted at
Feb 6, 2026, 12:28 PM
Active
[WTS] New Tudor Black Bay 41 Monochrome Jubilee 12/25 Ref# M7941A1A0NU $4,199.00

New Tudor Black Bay 41 Monochrome Jubilee 12/25 Ref# M7941A1A0NU $4,199.00

Tudor - M7941A1A0NU · $4,199
The listing is for a new Tudor Black Bay 41 Monochrome Jubilee watch with a black domed dial and 41mm size. It features an automatic self-winding movement, five-link Jubilee style bracelet, and a water resistance of 200M.

  • Condition: Unworn with slight handling mark in side of the case near the crown
  • Case size: 41mm
  • Water resistance: 200m
  • Movement: MT5602-U (COSC)
Posted at
Feb 6, 2026, 11:33 AM
Active
[WTS] New 2025 Tudor Black Bay 58 GMT Stickers 7/25 7939G1A0NRU “Coke” $4099.00

New 2025 Tudor Black Bay 58 GMT Stickers 7/25 7939G1A0NRU “Coke” $4099.00

Tudor - 7939G1A0NRU · $4,099
The watch being listed is a brand new 2025 Tudor Black Bay 58 GMT with a black domed gilt dial and burgundy bezel. It features a self-winding movement, 200M water resistance, and a 65-hour power reserve.

  • Condition: Unworn, full stickers
  • Case size: 39mm diameter
  • Movement: MT5450-U (COSC-METAS)
  • Water resistance: 200m depth rating
Posted at
Feb 6, 2026, 10:19 AM
Active
[WTS] Tudor Black Bay GMT Coke Full Set

Tudor Black Bay GMT Coke Full Set

Tudor - 7939G1A0NRU · $3,900
The Tudor Black Bay GMT Coke is a 39mm 7939G1A0NRU watch featuring a GMT function. It comes with a factory warranty, original packaging, and additional accessories.

  • Condition: Very good condition
  • Case Size: 39mm
  • Bracelet Type: Jubilee bracelet ($150)
  • Included Bracelet: Uncut OEM bracelet
Posted at
Feb 6, 2026, 9:28 AM
Active
[WTS] New 2026 Tudor Black Bay Pro White Opaline 1/26 Ref. 79470 $4,199.00

New 2026 Tudor Black Bay Pro White Opaline 1/26 Ref. 79470 $4,199.00

Tudor - 79470 · $4,199
This listing is for a new 2026 Tudor Black Bay Pro White Opaline, featuring an Opaline domed dial and a self-winding movement with a 200M water resistance. The watch has a 39mm steel case with a fixed bezel and a SS bracelet.

  • Condition: 10/10 unworn
  • Diameter: 40mm
  • Water Resistance: 200M Water Resistance
  • Movement: MT5652 (COSC)
Posted at
Feb 6, 2026, 9:21 AM
Active
[WTS] Tudor Black Bay 41mm Monochrome Oyster 🔥Brand New 2026, $4100+Shipping🔥

Tudor Black Bay 41mm Monochrome Oyster 🔥Brand New 2026, $4100+Shipping🔥

Tudor - Black Bay · $4,100
This Tudor Black Bay is a 41mm monochrome Oyster model, brand new and dated 2026. It comes complete with box and warranty card.

  • Condition: Brand New
  • Case size: 41mm diameter
  • Year: 2026
Posted at
Feb 6, 2026, 9:10 AM
Active
[WTS] Tudor Black Bay 58 GMT - Black/Burgundy - Gilt Coke - M7939G1A0NRU - Full Set

Tudor Black Bay 58 GMT - Black/Burgundy - Gilt Coke - M7939G1A0NRU - Full Set

Tudor - M7939G1A0NRU · $4,325
This Tudor Black Bay 58 GMT features a black and burgundy dial with gilt accents.

  • Condition: Fantastic condition with minor hairlines
  • Water resistance: 150m
Posted at
Feb 6, 2026, 8:30 AM
Active
[WTS] 2024.12 Tudor Black Bay Monochrome M7941A1A0NU 41mm Full Set - $3499

2024.12 Tudor Black Bay Monochrome M7941A1A0NU 41mm Full Set - $3499

Tudor - M7941A1A0NU · $3,499
The Tudor Black Bay Monochrome is a 41mm watch that comes with various accessories, including warranty and documentation.

  • Condition: Fully functional, running at -2 seconds per day
  • Case diameter: 41mm
  • Water resistance: 200m depth rating
Posted at
Feb 5, 2026, 11:22 PM
Active