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.

Buy Now on Jomashop

This is an affiliate link

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

Tudor Black Bay Steel 79730 Full Set w/ Steel Reef Micro Adjust System and Black Rubber Strap!

Tudor - 79730 · $2,800

A Tudor Heritage Black Bay Steel watch with a 41mm case, available in very good condition for a fraction of the cost.

Condition: Very excellent preowned condition
Size: 41mm diameter

Posted at

Dec 17, 2025, 10:24 PM

Active

View listing on r/WatchExchange

Tudor Black Bay GMT Pepsi - Ref. 79830RB - 2022 - $3100 plus label

Tudor - 79830RB · $3,100

The Tudor Black Bay GMT Pepsi is a pre-owned watch with a 41mm case and reference number 79830RB. It features a bezel, crystal, and functions as it should.

Condition: pre-owned with light wear
Case Condition: light wear to the case and bracelet
Clasp Condition: light wear present on the clasp
Included Accessories: Inner box, Outer box, Booklets, Hang tag, Warranty card

Posted at

Dec 17, 2025, 10:15 PM

Active

View listing on r/WatchExchange

Tudor Black Bay 41 Blue Smiley Dial

Tudor - 79540 · $2,200

This Tudor Black Bay 41 features a smooth stainless steel case and a matching bracelet, paired with a blue luminous dial.

Condition: Excellent
Case size: 41mm diameter
Water resistance: 150m depth rating

Posted at

Dec 17, 2025, 9:55 PM

Active

View listing on r/WatchExchange

Tudor Black Bay Heritage 41 | 41mm | Original Strap + Forstner Jubilee Bracelet

Tudor - Black Bay Heritage 41 · $2,550

The Tudor Black Bay Heritage 41 is a 41mm watch in excellent condition, accurate and running smoothly. It features a light scratch on the lower right lug but remains in great overall shape.

Condition: Beautiful condition, minimal signs of wear
Case Size: 41mm diameter
Bracelet Type: Forstner jubilee bracelet
Strap Included: true

Posted at

Dec 17, 2025, 9:30 PM

Active

View listing on r/WatchExchange

Tudor Black Bay GMT 41mm “PEPSI” 79830RB Black Dial | Complete Set

Tudor - M79830RB-0001 · $2,950

A Tudor Black Bay GMT 41mm 'PEPSI' watch in great condition, featuring a Calibre MT5652 movement and a black dial. It comes with various accessories, including inner and outer boxes, booklets, and a warranty card.

Condition: Gently used with minor surface wear, great condition overall
Movement: Calibre MT5652
Bracelet size: up to approximately a 7.75″ wrist
Movement accuracy: 0 seconds per day

Posted at

Dec 17, 2025, 8:17 PM

Active

View listing on r/WatchExchange

New 2025 Tudor Black Bay 41 Heritage 1/25 79230B $2899.00

Tudor - 79230B · $2,899

This 2025 Tudor Black Bay 41 Heritage is a limited edition model, one of only 25 produced. It features a blue domed dial and a stainless steel case with a 200M water resistance.

Condition: Unworn with minor handling marks and cosmetic wear on packaging
Case size: 41mm
Water resistance: 200m
Movement: MT5602 (COSC)

Posted at

Dec 17, 2025, 5:05 PM

Active

View listing on r/WatchExchange

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

Tudor - Black Bay 54 Lagoon Blue · $4,750

A Tudor Black Bay 54 in Lagoon Blue, a dive watch with a 41mm diameter case and a wealth of included accessories such as links, boxes, and warranty card.

Condition: Unworn, basically new
Serial number: not provided

Posted at

Dec 17, 2025, 10:27 AM

Active

View listing on r/WatchExchange

Tudor Black Bay. Ceramic. Full Kit. Nato Included.

Tudor - Black Bay · $3,150

Tudor Black Bay ceramic watch for sale, full kit and NATO strap included.

Material: ceramic
Strap: Nato strap included

Posted at

Dec 17, 2025, 10:11 AM

Active

View listing on r/WatchExchange

2020 Tudor Black Bay GMT Pepsi

Tudor - 79830RB · $3,100

The Tudor Black Bay GMT 'Pepsi' combines vintage charm with modern reliability, featuring a red-blue bezel and robust GMT functionality, housed in a 41mm stainless steel case with a power reserve of 70 hours.

Condition: Pre-owned, cosmetic condition 8/10 with wear on case and bracelet
Case Size: 41mm diameter
Movement: MT5652
Power Reserve: 70 hours

Posted at

Dec 16, 2025, 11:30 PM

Active

View listing on r/WatchExchange