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

2025.06 Tudor Black Bay 58 Burgundy 7939A1A0RU Full Set - $3899

Tudor - 7939A1A0RU · $3,899

Up for sale is a Tudor Black Bay 58 Burgundy, a 2025.06 model that comes with various accessories and a guarantee of authenticity.

Warranty start date: 2025.06
Warranty end date: 2030.06
Size: up to 7.126" (18.1cm) wrist diameter

Posted at

Apr 7, 2026, 11:53 PM

Active

View listing on r/WatchExchange

2024.04 Tudor Black Bay 79210CNU Ceramic 41mm Full Set - $3099

Tudor - 79210CNU · $3,099

A 2024.04 Tudor Black Bay 79210CNU Ceramic 41mm Full Set is up for sale, fully functional and under warranty until 2029.04.

Condition: Fully functional, under warranty
Warranty Start Date: 2024.04
Warranty End Date: 2029.04
Case Size: 41mm

Posted at

Apr 7, 2026, 11:26 PM

Active

View listing on r/WatchExchange

BNIB 2026.01 Tudor Black Bay Pro GMT Opaline 79470 - $4399

Tudor - 79470 · $4,399

Up for sale is a BNIB Tudor Black Bay Pro GMT Opaline, which comes with various accessories and is under warranty. The watch has been thoroughly inspected and authenticated prior to listing.

Condition: Brand new in box (BNIB)
Warranty Start Date: 2026.01
Warranty End Date: 2031.01

Posted at

Apr 7, 2026, 11:25 PM

Active

View listing on r/WatchExchange

BNIB 2026.01 Tudor Black Bay One 36 "Anthracite" 79640 - $3399

Tudor - 79640 · $3,399

This 2026.01 Tudor Black Bay One 36 'Anthracite' is a new, unboxed watch featuring a warranty card and documentation.

Condition: Brand new in box (BNIB)
Warranty Expiration: 2031.01
Authenticity Guaranteed: true with thorough inspection and authentication prior to listing

Posted at

Apr 7, 2026, 10:33 PM

Active

View listing on r/WatchExchange

Tudor Heritage Black Bay 41 79230R Full Set - $2499

Tudor - 79230R · $2,499

This Tudor Heritage Black Bay 41 is a fully functional watch with a slight deviation in timekeeping. It comes with documentation and packaging.

Condition: Pre-owned with a small scratch on the bezel near the '40' area
Diameter: 41mm
Depth rating: 200m

Posted at

Apr 7, 2026, 10:02 PM

Active

View listing on r/WatchExchange

Tudor Black Bay 58 Blue full kit

Tudor - Black Bay 58 Blue · $2,700

This Tudor Black Bay 58 Blue has been a daily wearer since its purchase in September 2024. It comes with its original box, papers, and some additional links.

Condition: Gently used, minor scratches and dings
Year: 2022
Purchase location: Bobs watches
Warranty card dated: no

Posted at

Apr 7, 2026, 10:01 PM

Active

View listing on r/WatchExchange

2025 Tudor Black Bay 58 Burgundy m7939a1a0ru-0001

Tudor - m7939a1a0ru-0001 · $4,400

A 2025 Tudor Black Bay 58 Burgundy watch available on a jubilee 5 link with all original boxes and papers.

Box Status: all original
Links: jubilee 5 link
Paper Status: all original

Posted at

Apr 7, 2026, 8:53 PM

Active

View listing on r/WatchExchange

Tudor Black Bay 58 GMT Coke M7939G1A0NRU - $3400 shipped

Tudor - M7939G1A0NRU · $3,400

Up for sale is my Tudor Black Bay 58 GMT Coke, a watch purchased from Jomashop last month that I must let go due to financial reasons. The watch does not come with the original box and warranty card but includes other paperwork and water pressure testing results.

Condition: Excellent (minor scratches on case back)
Case Size Diameter: 39mm
Thickness: 12.8mm
Lug To Lug: 47.5mm

Posted at

Apr 7, 2026, 8:04 PM

Active

View listing on r/WatchExchange

New 2026 Tudor Black Bay Pepsi GMT Black Stickered 3/26 Ref# 79830RB $3,899.00

Tudor - 79830RB · $3,899

The seller is listing a new 2026 Tudor Black Bay Pepsi GMT with a black domed dial, automatic self-winding movement, and a stainless steel riveted bracelet. The watch features 200m water resistance, a 70-hour power reserve, and the MT5652 COSC-certified movement.

Condition: Unworn
Diameter: 41mm
Water Resistance: 200m
Movement: MT5652 (COSC)

Posted at

Apr 7, 2026, 4:47 PM

Active

View listing on r/WatchExchange