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Tudor Black Bay One 36mm S&G Steel Black Dial M79643-0001
  • Tudor Black Bay One 36mm S&G Steel Black Dial M79643-0001
  • Tudor Black Bay One 36mm S&G Steel Black Dial M79643-0001
Tudor Black Bay One 36mm S&G Steel Black Dial M79643-0001

Tudor Black Bay One 36mm S&G Steel Black Dial M79643-0001 Tudor Black Bay One 36mm S&G Steel…

Reference M79643-0001

Full watch configuration

Tudor Black Bay One 36mm S&G Steel Black Dial M79643-0001

$6,721.00

By Tudor

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Tudor Black Bay One 36mm S&G Steel Black Dial M79643-0001

Tudor Black Bay One 36mm S&G Steel Black Dial M79643-0001

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Tudor Black Bay One 36mm S&G Steel Black Dial M79643-0001

Catalogue watch price: $6,721.00 USD

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The Tudor Black Bay One M79643-0001 is a 36mm two-tone dive-heritage watch pairing a steel case with a striking yellow gold bezel and a crisp black index dial on a steel and yellow gold bracelet. This reference brings the iconic Black Bay DNA into a refined steel-and-gold configuration that reads as simultaneously sporty and dressy.

What sets the M79643-0001 apart is the rare balance it strikes between the robust Black Bay silhouette and the warmth of yellow gold accents — a combination that commands attention on the wrist without sacrificing everyday wearability. Contact Bizak & Co. today to purchase this Tudor Black Bay One at the best price, with fast and secure shipping.

Compare it across every Black Bay One reference we carry, or browse the full Tudor collection at Bizak & Co.

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The Tudor Black Bay One M79643-0001 is one of the most visually compelling expressions in the storied Black Bay collection. Introduced as part of Tudor's effort to broaden the Black Bay lineup beyond its purely sportive origins, the Black Bay One — in its 36mm steel and yellow gold configuration — sits at the intersection of vintage dive-watch character and contemporary luxury. The 36mm case diameter makes it an especially versatile choice, flattering a wide range of wrist sizes while referencing the more intimate proportions of mid-century sport watches.

The design language is unmistakably Black Bay. Tudor's signature "big crown" heritage, applied to a two-tone execution, gives the M79643-0001 a personality that is both authoritative and elegant. The black index dial provides maximum contrast and legibility, a hallmark of the Black Bay ethos, while the yellow gold bezel wraps the steel case in a warm, radiant accent that elevates the watch well beyond workaday tool-watch territory. Every design element has been considered with the kind of restraint that defines genuinely confident watchmaking.

The steel and yellow gold bracelet continues the two-tone theme seamlessly from the case to the wrist. The interplay of polished yellow gold center links against brushed steel outer links is a study in tonal contrast that ages gracefully and integrates naturally into both formal and casual wardrobes. The bracelet's construction is consistent with Tudor's reputation for robust, well-engineered bracelets that wear comfortably over long periods.

The Black Bay One's 36mm case size is a deliberate nod to proportional elegance. While larger-cased watches have dominated the market for years, the 36mm diameter is experiencing a well-deserved renaissance among collectors who prize refined wrist presence over sheer visual mass. On the wrist, the M79643-0001 sits with confidence and purpose — substantial enough to register as a serious timepiece, compact enough to disappear under a shirt cuff when the occasion demands.

Buying the Tudor Black Bay One M79643-0001 from Bizak & Co. means acquiring an example at a best-in-class price, backed by the expertise and transparency that define every transaction at bizakandco.com. Whether you are a seasoned Tudor collector adding a steel-and-gold variant to a growing collection or a first-time buyer drawn to the Black Bay's legendary heritage, this reference delivers outstanding value and enduring style. Reach out to the Bizak & Co. team to confirm availability, ask questions, or arrange your purchase today.
Technical Details
Reference
M79643-0001
Model
Black Bay One
Case material
Stainless Steel
Bracelet material
Two-Tone
Dial
Black with index markers
Case size
36mm
FAQ

1. What makes the Tudor Black Bay One M79643-0001 special?
The M79643-0001 stands out for its two-tone steel and yellow gold execution in the classic Black Bay silhouette, combining a yellow gold bezel and matching bracelet links with a steel case and a high-contrast black index dial. The 36mm case size adds a vintage-inspired refinement that distinguishes it from larger Black Bay references. It is a rare combination of sport-watch heritage and luxurious finishing.

2. What movement powers the Tudor Black Bay One 36mm M79643-0001?
Tudor has not publicly disclosed a specific caliber designation for this reference in its official communications, and Bizak & Co. does not speculate on movement specifications beyond what is confirmed. For precise movement details, we encourage you to contact our team directly or consult Tudor's official product documentation.

3. What is the case size of the Tudor Black Bay One M79643-0001?
The Tudor Black Bay One M79643-0001 features a 36mm steel case, placing it in the mid-size category that suits a broad range of wrist sizes. The 36mm diameter is a deliberate design choice that channels the proportions of vintage sport watches while remaining fully contemporary in execution.

4. Is the Tudor Black Bay One M79643-0001 suitable for everyday wear?
Yes, the Black Bay One's steel case and robust bracelet construction make it entirely appropriate for daily wear, and the two-tone steel and yellow gold aesthetic transitions naturally between casual and formal settings. The 36mm size is particularly well-suited for those who prefer a lighter, more understated profile on the wrist. It is as at home at a business meeting as it is on a weekend.

5. What are the dial and bezel details of the M79643-0001?
The dial is black with index hour markers, providing clean, high-contrast legibility that is a signature of the Black Bay family. The bezel is yellow gold, creating a warm and distinctive accent against the steel case. Together, these elements give the watch a two-tone character that is sophisticated without being ostentatious.

6. Is the Tudor Black Bay One M79643-0001 a good buy, and how can I purchase it from Bizak & Co.?
The Tudor Black Bay One in steel and yellow gold is a compelling investment for collectors and enthusiasts alike, combining the brand's acclaimed quality with a relatively rare two-tone configuration that holds strong appeal in the secondary market. Bizak & Co. offers this reference at the best price, with secure transactions and expert service. Visit bizakandco.com or contact our team directly to purchase the M79643-0001 today.

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Our five-year Bizak & Co. warranty covers manufacturing defects affecting mechanical operation under normal use, starting on delivery. It is separate from any remaining manufacturer warranty.

Exclusions include accidental damage, misuse, water damage, cosmetic damage, normal wear, loss and theft. Coverage and service availability for vintage or modified watches are confirmed in writing before purchase.

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90-Day Returns for Store Credit

Eligible watches may be returned within 90 days for store credit. Brand-new watches and other exclusions are final sale.

Read eligibility, condition requirements, and exclusions.

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U.S. overnight shipping is $100; international shipping is $500. Dispatch takes 2–3 business days after your wire clears. International transit times vary. Shipping details.

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