Skip to product information
Tudor Black Bay One 31mm S&G Steel Yellow Gold Bracelet Black Dial M79603-0001 - BRAND NEW

Tudor Black Bay One 31mm S&G Steel Yellow Gold Bracelet Black Dial M79603-0001 - BRAND NEW Tudor Black Bay One 31mm S&G Steel…

Reference M79603-0001

Full watch configuration

Tudor Black Bay One 31mm S&G Steel Yellow Gold Bracelet Black Dial M79603-0001 - BRAND NEW

$3,999.00
Requested condition
Brand New
Requested accessories
Full Set

By Tudor

Sourced to order. We confirm the watch, condition and final price before purchase. Reference images shown.

Eligible watches: 90-day returns for store credit only. Brand-new watches and other exclusions are final sale. Return terms.

Tudor Black Bay One 31mm S&G Steel Yellow Gold Bracelet Black Dial M79603-0001 - BRAND NEW

Tudor Black Bay One 31mm S&G Steel Yellow Gold Bracelet Black Dial M79603-0001 - BRAND NEW

Current Catalogue Asking Price:

Your Offer

$

Submit your offer for review. Availability and the final price require confirmation.

Preferred Contact Method
I have a trade-in / add a note

Reserve with $200

Tudor Black Bay One 31mm S&G Steel Yellow Gold Bracelet Black Dial M79603-0001 - BRAND NEW

Catalogue watch price: $3,999.00 USD

Your $200 deposit is applied to the watch’s purchase price. It is refundable only if Bizak & Co. cannot fulfill your order.

Estimated remaining balance: $. Pay by bank wire or cryptocurrency after we confirm your watch and final invoice. Shipping and applicable taxes are additional.

Shipping details · Return terms

Watch shipping is paid with the final balance: $100 for U.S. overnight delivery or $500 internationally. Applicable taxes and import charges are additional.

After payment, our team starts the tailored search and contacts you to confirm the specific watch and final invoice. A deposit does not guarantee a unit, the listed price or a delivery date.

Need installments? Check eligibility before paying a deposit.

Speak with a Bizak & Co. specialist about this piece

|Call or Text

The Tudor Black Bay One M79603-0001 is a brand-new 31mm steel and yellow gold sports watch featuring a black dot dial, polished yellow gold bezel, and a matching steel and yellow gold bracelet. This reference delivers Tudor's iconic Black Bay design language in a compact, elegant two-tone configuration perfectly suited to a range of wrist sizes.

What sets the M79603-0001 apart is the refined interplay of warm yellow gold accents against brushed and polished steel, anchored by the striking black dial with classic dot indices — a combination that reads as both sporty and dressed-up. Contact Bizak and Co. today to purchase this brand-new Tudor Black Bay One and experience white-glove service with best-price assurance.

Compare it across every Black Bay One 31 reference we carry, or browse the full Tudor collection at Bizak & Co.

Buy this Black Bay One 31, trade in your current watch, or sell us yours. Contact Bizak & Co. to make an offer or request a fair-market valuation.

Not the exact one you’re looking for?

Source your dream watch

Learn More

The Tudor Black Bay One M79603-0001 is one of the most compelling entries in Tudor's celebrated Black Bay family, distilling the line's heritage-rich dive-watch DNA into a 31mm steel and yellow gold package that appeals to collectors who want both sport credibility and everyday elegance. Tudor introduced the Black Bay line as a direct homage to the brand's mid-twentieth-century diving watches, and every design detail — from the domed crystal to the snowflake-influenced aesthetics — carries that historical weight forward into a thoroughly modern timepiece.

At 31mm, the Black Bay One occupies a thoughtfully considered position in Tudor's sizing spectrum. The case is crafted from polished and satin-finished stainless steel, and the strategic addition of yellow gold — on the bezel, the bracelet center links, and the crown — elevates the watch from pure sport tool to a piece that transitions seamlessly from the boardroom to the weekend. The 31mm diameter ensures excellent wrist presence on smaller to medium wrists without overwhelming the wearer, and the case proportions remain true to Black Bay's characteristic bold, vintage-inspired silhouette.

The dial is finished in deep black and features dot indices, an arrangement that speaks directly to Tudor's vintage diving references and gives the watch a clean, purposeful legibility. The yellow gold accents on the dial — including the hands and indices — create a warm contrast against the dark background that is immediately eye-catching without being ostentatious. This is a dial that rewards close inspection, revealing subtle finishing details that reinforce Tudor's reputation for delivering exceptional quality at its price point.

Powering the Black Bay One M79603-0001 is an automatic movement, continuing Tudor's commitment to in-house and manufacture-quality mechanical watchmaking. The steel and yellow gold bracelet is fitted with Tudor's comfortable integrated clasp, ensuring a secure and adjustable fit for a wide range of wrist sizes. The two-tone bracelet, alternating brushed steel outer links with polished yellow gold center links, is executed to a standard that rivals far more expensive Swiss rivals and gives the watch a cohesive, unified aesthetic from case to clasp.

For collectors and first-time luxury watch buyers alike, the Tudor Black Bay One M79603-0001 represents outstanding value in the two-tone sports watch category. It carries the heritage and Swiss manufacture credentials of Tudor, a brand with deep roots in precision watchmaking and an increasingly devoted global collector following. Whether you are drawn to the Black Bay family for its vintage dive-watch heritage or its contemporary versatility, this reference delivers on every level.

Bizak and Co. is proud to offer this Tudor Black Bay One M79603-0001 as a brand-new example, complete with box and papers, at the best available price. Our team of experienced watch specialists is available to answer any questions about this reference, assist with sizing, or guide you through a purchase. Buy online at bizakandco.com or contact us directly for a personalized consultation — we make acquiring your next fine timepiece as rewarding as wearing it.

Technical Details
Reference
M79603-0001
Model
Black Bay One 31
Movement
Automatic
Case material
Two-Tone
Bracelet material
Two-Tone
Dial
Black with dot indices
Case size
31mm
Requested condition
Brand New
Requested accessories
Full Set
FAQ

1. What makes the Tudor Black Bay One M79603-0001 special?
The M79603-0001 stands out for its rare 31mm two-tone steel and yellow gold configuration within the Black Bay family, combining Tudor's heritage dive-watch design with an elegant, versatile aesthetic. The yellow gold bezel and matching bracelet accents give it a dressy sport character that few competitors offer at this price point.

2. What movement powers the Tudor Black Bay One M79603-0001?
The Tudor Black Bay One M79603-0001 is powered by an automatic mechanical movement, consistent with Tudor's commitment to reliable, high-quality Swiss watchmaking across the Black Bay line. Specific caliber details can be confirmed with our Bizak team at the time of purchase.

3. What is the case size of the Tudor Black Bay One M79603-0001?
The Tudor Black Bay One M79603-0001 features a 31mm stainless steel case, making it an ideal choice for those who prefer a more refined, compact wrist profile while still enjoying the bold Black Bay design DNA. The 31mm sizing is part of Tudor's dedicated effort to offer the Black Bay experience across a wider range of wearers.

4. Is the Tudor Black Bay One M79603-0001 good for everyday wear?
Absolutely — the Black Bay One M79603-0001 is built with Tudor's characteristically robust steel construction and an automatic movement engineered for daily reliability. The steel and yellow gold bracelet and secure clasp mean it wears comfortably all day, whether dressed up or dressed down.

5. What is the dial and case material on the M79603-0001?
The M79603-0001 features a black dial with classic dot indices and warm yellow gold hands, set within a 31mm stainless steel case accented with yellow gold elements including the bezel. The contrast between the deep black dial and yellow gold detailing is one of this reference's most striking visual signatures.

6. Is the Tudor Black Bay One M79603-0001 a good buy and how can I purchase it from Bizak?
The Tudor Black Bay One M79603-0001 is widely regarded as excellent value in the two-tone luxury sports watch segment, offering Swiss manufacture quality and iconic design at a compelling price relative to comparable rivals. You can buy this brand-new example with box and papers directly at bizakandco.com or contact the Bizak and Co. team for personalized assistance and best-price service.

Certified Authenticity

Every watch is authenticated before delivery.

Real Family Business

You're buying from genuine people, 30 years in business.

Bizak & Co. Warranty

Every watch is checked by us before shipping.

5 Years Warranty

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.

Read the full warranty terms and service instructions. 

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.

Insured delivery

Insured shipping

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.

You might also like...

Customer Reviews

Read our reviews on Trustpilot

  • Great family business

    Great family business. They went out of their way to make my purchase go smoothly, they definitely earned my watch business!

    Paul

    Read on Trustpilot ↗
  • Good seller

    Good seller. Honest family

    Mateusz

    Read on Trustpilot ↗
  • Honest family company

    Honest family company. I’ve done business many times!

    Mollie

    Read on Trustpilot ↗
  • Trusted Seller

    Trusted Seller, Definitely recommend for all watches purchase!

    Consumer

    Read on Trustpilot ↗
  • Trusted and honest seller

    Trusted and honest seller. Deal with confidence.

    Jean Dib

    Read on Trustpilot ↗