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 M79830RB-0001 "Pepsi" 41mm Full Set - $2699

Tudor Black Bay M79830RB-0001 "Pepsi" 41mm Full Set - $2699

Tudor - M79830RB-0001 · $2,699
A 2019 Tudor Black Bay M79830RB-0001 'Pepsi' in excellent condition. The watch features a 41mm case and comes with original packaging, including warranty card, inner and outer boxes, and booklets.

  • Year: 2019
Posted at
Jan 1, 2026, 11:11 PM
Active
[WTS] Tudor Heritage Black Bay

Tudor Heritage Black Bay

Tudor - 79220R · $2,995
a future classic original black bay model, serviced last year at Bob's Watches, comes with full kit

  • Condition: Excellent
  • Serviced by: Bobs Watches
Posted at
Jan 1, 2026, 8:07 PM
Active
[WTS] 2021 Tudor Pepsi Black Bay 79830RB Complete Set with Box and Papers and Uncle Seiko Jubilee Bracelet

2021 Tudor Pepsi Black Bay 79830RB Complete Set with Box and Papers and Uncle Seiko Jubilee Bracelet

Tudor - 79830RB · $2,750
A 2021 Tudor Pepsi Black Bay in excellent condition, suitable for both formal and casual occasions. It comes with the original bracelet and is complete with box, papers, and warranty card.

  • Condition: good condition with light wear on case and a couple of flea bites
  • Bracelet Material: Steel
  • Case Material: Steel
  • Movement: Automatic
Posted at
Jan 1, 2026, 3:06 PM
Active
[WTS] 2025 New Tudor Black Bay 58 Burgundy Jubilee 12/25 Stickered Ref# M7939A1A0RU $4,199.00

2025 New Tudor Black Bay 58 Burgundy Jubilee 12/25 Stickered Ref# M7939A1A0RU $4,199.00

Tudor - M7939A1A0RU · $4,199
This is a new Tudor Black Bay 58 Burgundy Jubilee watch featuring a burgundy domed dial with applied hour markers and a 39mm case. It has automatic self-winding and a 200M water resistance rating.

  • Condition: 10/10, unworn
  • Diameter: 39mm
  • Water Resistance: 200M depth rating
  • Power Reserve: 65-hour power reserve
Posted at
Jan 1, 2026, 1:26 PM
Active
[WTS] New Tudor Black Bay Pro White Opaline 12/25 Ref. 79470 $4,299.00

New Tudor Black Bay Pro White Opaline 12/25 Ref. 79470 $4,299.00

Tudor - 79470 · $4,299
This Tudor Black Bay Pro features a self-winding movement, 200m water resistance, and a 39mm steel case with a fixed bezel.

  • Condition: 10/10 unworn with some stickers
  • Diameter: 39mm
  • Case material: steel
  • Water resistance: 200m
Posted at
Jan 1, 2026, 1:19 PM
Active
[WTS] Tudor Black Bay 41mm 79230N — Full Set 2024 — $2,850

Tudor Black Bay 41mm 79230N — Full Set 2024 — $2,850

Tudor - 79230N · $2,850
This Tudor Black Bay is a 41mm watch with an in-house MT5602 movement. It's running strong and comes with a full set, including inner and outer boxes.

  • Condition: Good condition, with normal wear consistent with use; no known issues.
  • Movement: Tudor MT5602
  • Year: 2024
  • Straps: Uncle Straps Jubilee bracelet,Vanguard rubber strap
Posted at
Jan 1, 2026, 12:00 PM
Active
[WTS] Tudor Lagoon Blue Black Bay 54 Full Set $4750 including CONUS shipping

Tudor Lagoon Blue Black Bay 54 Full Set $4750 including CONUS shipping

Tudor - Black Bay 54 · $4,750
This is a Tudor Lagoon Blue Black Bay 54 watch, sold as unworn and essentially new with full set.

  • Condition: Unworn, essentially new
  • Diameter: 41mm
Posted at
Jan 1, 2026, 11:20 AM
Active
[WTS][US] Tudor Black Bay - Red + Black Dial - 41mm - M7941A1A0RU-0002 - Full Set

[US] Tudor Black Bay - Red + Black Dial - 41mm - M7941A1A0RU-0002 - Full Set

Tudor - M7941A1A0RU-0002 · $3,275
This Tudor Black Bay features a 41mm Red + Black dial, coming in full set condition.

  • Condition: Pristine with minor hairlines on clasp and case
  • Case size: 41mm diameter
Posted at
Jan 1, 2026, 6:48 AM
Active
[WTS] Tudor Black Bay 58 Silver Leather 🔥Brand New 2025, $3700+S🔥

Tudor Black Bay 58 Silver Leather 🔥Brand New 2025, $3700+S🔥

Tudor - Black Bay 58 · $3,700
This Tudor Black Bay 58 is a recent model, released in 2025. It comes with its original box and warranty card.

  • Condition: Brand New
  • Year Of Manufacture: 2025
Posted at
Dec 31, 2025, 8:41 PM
Active