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

2025 Tudor Black Bay 54 - Box and Papers 79000N - Stunning condition

Tudor - 79000N · $3,650

The Tudor Black Bay 54 is a tribute to the brand's first-ever dive watch, with a sleek stainless steel bracelet and striking black dial. It comes as a complete set with its original box and papers, making it an ideal acquisition for both seasoned collectors and new enthusiasts.

Condition: Excellent with a few minor marks on the buckle
Case size: 37mm
Movement type: Tudor automatic movement

Posted at

Feb 11, 2026, 12:07 PM

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Tudor Black Bay 36mm - Blue Dial - 79500

Tudor - Black Bay 36mm · $2,950

a Tudor Black Bay with a blue dial, available for sale in the 36mm size.

Posted at

Feb 11, 2026, 9:49 AM

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Tudor Black Bay 58 (Ref. 79030N) - Great Condition, Full Set

Tudor - 79030N · $2,650

A Tudor Black Bay 58 in excellent working condition, complete with double box and accessories.

Condition: Great condition, working as expected
Water Resistance: 200m depth rating

Posted at

Feb 11, 2026, 9:10 AM

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Tudor Black Bay Pro Opaline 🔥Brand New 2026, $4200+Shipping🔥

Tudor - Black Bay Pro Opaline · $4,200

This Tudor Black Bay Pro Opaline is a brand new watch, dated 2026. It comes with the original box and warranty card.

Condition: Brand New
Shipping: included in price
Payment: wire or credit card (+4.9%)

Posted at

Feb 11, 2026, 8:35 AM

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Tudor Black Bay Bronze - Brown Dial - 39mm - M79012M - Full Set

Tudor - M79012M · $3,625

A Tudor Black Bay Bronze with a brown dial and 39mm case, featuring a mechanical movement. The watch includes its original accessories such as the box, nato strap, manual, warranty booklet, and warranty card.

Condition: Great condition with minor cosmetic issues (hairlines)
Case size: 39mm
Bracelet links: 10 full links

Posted at

Feb 11, 2026, 8:06 AM

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Tudor Black Bay Fifty-Eight 58- OEM NATO + Tan Leather

Tudor - M79030N-0003 · $2,800

The Tudor Black Bay Fifty-Eight is a legendary diver featuring the in-house MT5402 movement, perfect proportions, and versatility on straps.

Condition: Very good with light scratches
Movement: MT5402
Straps included: 3
Case size: Not specified

Posted at

Feb 10, 2026, 11:29 PM

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2025 Tudor Black Bay 58 GMT "Coke" 7939G1A0NRU - $3850

Tudor - 7939G1A0NRU · $3,850

2025 Tudor Black Bay 58 GMT 'Coke' for sale in like new to mint condition, complete with boxes, papers, warranty card, and extra links.

Condition: Like new to mint condition

Posted at

Feb 10, 2026, 9:13 PM

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Tudor Black Bay Fifty-Eight 58 M79030N-0003 - OEM NATO + Tan Leather Strap - 39mm Strap Box Card

Tudor - M79030N-0003 · $2,550

The Tudor Black Bay Fifty-Eight is a legendary diver with perfect proportions and versatility on straps.

Condition: Very good with light scratches
Movement: MT5402
Case size: 39mm

Posted at

Feb 10, 2026, 6:22 PM

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2024 TUDOR BLACK BAY 41 7941A1A0NU $3900 + FREE SHIPPING

Tudor - 7941A1A0NU · $3,900

This 2024 Tudor Black Bay 41 features a stainless steel case, aluminum bezel, and black dial. It has a power reserve of 70 hours and a water resistance of 200m.

Condition: 9/10 - Excellent condition, light wear on clasp and case.
Case size: 41mm diameter
Movement: MT5602 automatic movement
Power reserve: 70 hours

Posted at

Feb 10, 2026, 4:00 PM

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