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] BNIB 2025 Tudor Black Bay 58 GMT 11/25 7939G1A0NRU Coke $4,249

BNIB 2025 Tudor Black Bay 58 GMT 11/25 7939G1A0NRU Coke $4,249

Tudor - M7939G1A0NRU-0001 · $4,249
This 2025 Tudor Black Bay 58 GMT is a brand new, unworn timepiece with a 39mm case.

  • Condition: Brand New, Unworn, Unsized
  • Material: steel
  • Diameter: 39mm
Posted at
Dec 13, 2025, 12:13 PM
Active
[WTS] New 2025 Tudor Black Bay 58 GMT Stickers 10/25 7939G1A0NRU “Coke” $4299.00

New 2025 Tudor Black Bay 58 GMT Stickers 10/25 7939G1A0NRU “Coke” $4299.00

Tudor - 7939G1A0NRU · $4,299
The watch being listed is a 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
  • Diameter: 39mm
  • Movement: MT5450-U (COSC-METAS)
  • Water Resistance: 200m depth rating
Posted at
Dec 13, 2025, 12:00 PM
Active
[WTS] Tudor Black Bay Steel, M79730, Full Kit, Great Condition, warranty until 4/28

Tudor Black Bay Steel, M79730, Full Kit, Great Condition, warranty until 4/28

Tudor - M79730 · $2,600
Tudor Black Bay Steel features a stainless steel case and bracelet, black dial, and COSC calibre MT5612 automatic movement.

  • Condition: Great preowned condition, average desk diving marks
  • Movement: MT5612, 70-hour power reserve
  • Case size: 41mm diameter
  • Bracelet material: stainless steel
Posted at
Dec 13, 2025, 11:52 AM
Active
[WTS] Tudor Black Bay 54 Lagoon Blue (M79000-0001) - $4650

Tudor Black Bay 54 Lagoon Blue (M79000-0001) - $4650

Tudor - M79000-0001 · $4,650
For sale is a Tudor Black Bay 54 Lagoon Blue, in overall mint condition with minor marks. It comes with a full set of accessories.

  • Condition: Overall mint condition with a few light marks on the clasp
  • Year: 2025
  • Box Papers Warranty: yes
  • Extra Links: included
Posted at
Dec 13, 2025, 10:41 AM
Active
[WTS] Tudor Black Bay Chronograph 79360B Blue Dial 2024 Full Set - $4,895

Tudor Black Bay Chronograph 79360B Blue Dial 2024 Full Set - $4,895

Tudor - 79360B · $4,895
Up for sale is a Tudor Black Bay Blue, Reference 79360B, from 2024, in excellent condition.

  • Condition: Excellent condition
  • Year: 2024
  • Contents: Watch (full links), Inner & Outer Box, International Warranty Card, Warranty Booklet, User Manual, Hang Tag
Posted at
Dec 13, 2025, 10:07 AM
Active
[WTS] Tudor Black Bay - 79230R - ‘Qatar’ Special Edition - Mint Condition

Tudor Black Bay - 79230R - ‘Qatar’ Special Edition - Mint Condition

Tudor - 79230R · $4,995
This Tudor Black Bay 'Qatar' Special Edition features a black dial with English and Arabic characters, produced in extremely low quantities.

  • Condition: Mint Condition
  • Case size: 41mm
  • Water resistance: 200m depth rating
Posted at
Dec 13, 2025, 9:51 AM
Active
[WTS] TUDOR BLACK BAY CHRONO PANDA JUBILEE BRAND NEW 11/2025 WITH STICKERS!!

TUDOR BLACK BAY CHRONO PANDA JUBILEE BRAND NEW 11/2025 WITH STICKERS!!

Tudor - 79360N · $5,400
This TUDOR Black Bay Chrono Panda is a brand new watch with stickers, featuring a beautiful white dial and stainless steel case.

  • Condition: Brand new
  • Case size: 41mm diameter
  • Material: Stainless Steel
Posted at
Dec 12, 2025, 9:22 PM
Active
[WTS] 2024 TUDOR BLACK BAY 79230B BLUE BEZEL EXCELLENT PRE-OWNED $2800

2024 TUDOR BLACK BAY 79230B BLUE BEZEL EXCELLENT PRE-OWNED $2800

TUDOR - 79230B · $2,800
A pre-owned TUDOR BLACK BAY from June 2024, featuring a black dial and stainless steel case in 41MM size.

  • Condition: Excellent Pre Owned
  • Case size: 41mm
  • Material: Stainless Steel
Posted at
Dec 12, 2025, 9:06 PM
Active