Product Images

The Black Bay 31, 36, 39 and 41 bring a more formal feel to the Black Bay models. Like other models in the Black Bay line, they feature a dial inspired by the TUDOR divers’ watches produced during the 1950s. These contemporary models boast characteristics of the first generation of TUDOR divers’ watches.


  • Product Number: 450017825552
  • Model Number: M79640-0002
  • Collection: Black Bay One
  • Movement: Automatic
  • Dial Colour/Material: Blue
  • Case Size: 36 mm
  • Bracelet: Stainless Steel
  • Warranty: 5-Year International Warranty
  • Watch Crystal: Sapphire Crystal
  • Clasp: Folding Clasp
  • Water Resistance: 100 metres / 10 ATM
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SHIPPING

Enjoy free standard shipping within Canada. To ensure the satisfaction of parcel reception, all our packages require signature upon delivery. The estimated delivery time is 2 to 5 days business days. For more information, click here.

EXTENDED HOLIDAY RETURN POLICY

For all regular-priced merchandise purchased online at MaisonBirks.com or in a Maison Birks or Birks Royalmount store from December 1st - 13th, 2025, returns and exchanges will be accepted until January 14th, 2026.

RETURNS

All Tudor watches with bracelets adjusted or with the protective plastic/stickers removed are final sale. No returns or exchanges will be accepted. All TUDOR watches purchased on MaisonBirks.com can only be returned or exchanged by mail within 30 days of delivery, provided merchandise has not been worn, altered, engraved, or special-ordered. All claims, returns, battery replacement, or warranty service must be accompanied by proof of purchase, original packaging and warranty materials. All returns are subject to a quality inspection to ensure the merchandise meets our return policy criteria. All merchandise purchased with cryptocurrency is final sale. For more information, click here.

TUDOR

TUDOR Black Bay One Automatic 36 mm Stainless Steel

Black Bay One Automatic 36 mm Stainless Steel
Estimated Price:
$ 5,270
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*This item is on order. This ring will be crafted just for you.
Contact an expert to confirm the delivery timeline.

All images shown are for illustration purposes only. Actual product may vary. Birks reserves the right to change the font, size and text orientation depending on the engraving message for best result.

Please note the estimated time for our engraving services is 7 to 10 business days. Engraved items are final sale.

Once adjusted Tudor watches are final sale.

Note that in store (after sale) adjustments to your Tudor watch is available exclusively in Official Tudor Maison Birks locations.

All prices are Tudor's suggested retail prices before applicable taxes. Tudor reserves the right to change prices at any time without notice.
 
All Tudor watches with bracelets adjusted or with the protective plastic/stickers removed are final sale. No returns or exchanges will be accepted.

The Black Bay 31, 36, 39 and 41 bring a more formal feel to the Black Bay models. Like other models in the Black Bay line, they feature a dial inspired by the TUDOR divers’ watches produced during the 1950s. These contemporary models boast characteristics of the first generation of TUDOR divers’ watches.


  • Product Number: 450017825552
  • Model Number: M79640-0002
  • Collection: Black Bay One
  • Movement: Automatic
  • Dial Colour/Material: Blue
  • Case Size: 36 mm
  • Bracelet: Stainless Steel
  • Warranty: 5-Year International Warranty
  • Watch Crystal: Sapphire Crystal
  • Clasp: Folding Clasp
  • Water Resistance: 100 metres / 10 ATM
View More Details
View Fewer Details

SHIPPING

Enjoy free standard shipping within Canada. To ensure the satisfaction of parcel reception, all our packages require signature upon delivery. The estimated delivery time is 2 to 5 days business days. For more information, click here.

EXTENDED HOLIDAY RETURN POLICY

For all regular-priced merchandise purchased online at MaisonBirks.com or in a Maison Birks or Birks Royalmount store from December 1st - 13th, 2025, returns and exchanges will be accepted until January 14th, 2026.

RETURNS

All Tudor watches with bracelets adjusted or with the protective plastic/stickers removed are final sale. No returns or exchanges will be accepted. All TUDOR watches purchased on MaisonBirks.com can only be returned or exchanged by mail within 30 days of delivery, provided merchandise has not been worn, altered, engraved, or special-ordered. All claims, returns, battery replacement, or warranty service must be accompanied by proof of purchase, original packaging and warranty materials. All returns are subject to a quality inspection to ensure the merchandise meets our return policy criteria. All merchandise purchased with cryptocurrency is final sale. For more information, click here.

The Black Bay 31, 36, 39 and 41 bring a more formal feel to the Black Bay models. Like other models in the Black Bay line, they feature a dial inspired by the TUDOR divers’ watches produced during the 1950s. These contemporary models boast characteristics of the first generation of TUDOR divers’ watches.


  • Product Number: 450017825552
  • Model Number: M79640-0002
  • Collection: Black Bay One
  • Movement: Automatic
  • Dial Colour/Material: Blue
  • Case Size: 36 mm
  • Bracelet: Stainless Steel
  • Warranty: 5-Year International Warranty
  • Watch Crystal: Sapphire Crystal
  • Clasp: Folding Clasp
  • Water Resistance: 100 metres / 10 ATM
View More Details
View Fewer Details

SHIPPING

Enjoy free standard shipping within Canada. To ensure the satisfaction of parcel reception, all our packages require signature upon delivery. The estimated delivery time is 2 to 5 days business days. For more information, click here.

EXTENDED HOLIDAY RETURN POLICY

For all regular-priced merchandise purchased online at MaisonBirks.com or in a Maison Birks or Birks Royalmount store from December 1st - 13th, 2025, returns and exchanges will be accepted until January 14th, 2026.

RETURNS

All Tudor watches with bracelets adjusted or with the protective plastic/stickers removed are final sale. No returns or exchanges will be accepted. All TUDOR watches purchased on MaisonBirks.com can only be returned or exchanged by mail within 30 days of delivery, provided merchandise has not been worn, altered, engraved, or special-ordered. All claims, returns, battery replacement, or warranty service must be accompanied by proof of purchase, original packaging and warranty materials. All returns are subject to a quality inspection to ensure the merchandise meets our return policy criteria. All merchandise purchased with cryptocurrency is final sale. For more information, click here.

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