TUDOR Black Bay One 39mm S&G Silver Dial, Two Tone Bracelet (M79663-0002)
Key Features
This refined 39mm timepiece features a stainless steel case with polished and satin finishes, delivering a versatile and classic look. The fixed bezel is crafted from steel and capped with 0.3mm of yellow gold, adding a luxurious contrast. The silver dial offers a clean, timeless appearance that pairs seamlessly with the watch’s overall two-tone design. With a case thickness of 12.0mm and a lug width of 21mm, it provides a substantial yet balanced profile on the wrist.
Movement
Inside is the Manufacture Calibre MT5602 (COSC), a self-winding mechanical movement with a bidirectional rotor system. Certified as a chronometer, it offers reliable, precise timekeeping with enhanced resistance to shocks and wear.
Power Reserve
Equipped with a power reserve of approximately 70 hours, the watch can maintain accurate time even after being set aside for a few days.
Waterproofness
Waterproof to 100 meters (330 feet), this model is engineered to endure everyday use as well as occasional water exposure.
Winding Crown
The screw-down winding crown is adorned with the TUDOR rose in relief and crafted from steel covered with a 0.1mm yellow gold cap, providing both function and refined detail in harmony with the two-tone aesthetic.
Bracelet
This bracelet features first center links in either steel or solid yellow gold, while the remaining center links are made from a steel core capped with 0.2mm of yellow gold. It is secured with a TUDOR “T-fit” folding clasp and safety catch, featuring a clasp logo made of solid yellow gold for a final touch of sophistication.
Warranty
Includes a five-year transferable guarantee, with no registration or periodic maintenance checks required.



Description
Key Features
This refined 39mm timepiece features a stainless steel case with polished and satin finishes, delivering a versatile and classic look. The fixed bezel is crafted from steel and capped with 0.3mm of yellow gold, adding a luxurious contrast. The silver dial offers a clean, timeless appearance that pairs seamlessly with the watch’s overall two-tone design. With a case thickness of 12.0mm and a lug width of 21mm, it provides a substantial yet balanced profile on the wrist.
Movement
Inside is the Manufacture Calibre MT5602 (COSC), a self-winding mechanical movement with a bidirectional rotor system. Certified as a chronometer, it offers reliable, precise timekeeping with enhanced resistance to shocks and wear.
Power Reserve
Equipped with a power reserve of approximately 70 hours, the watch can maintain accurate time even after being set aside for a few days.
Waterproofness
Waterproof to 100 meters (330 feet), this model is engineered to endure everyday use as well as occasional water exposure.
Winding Crown
The screw-down winding crown is adorned with the TUDOR rose in relief and crafted from steel covered with a 0.1mm yellow gold cap, providing both function and refined detail in harmony with the two-tone aesthetic.
Bracelet
This bracelet features first center links in either steel or solid yellow gold, while the remaining center links are made from a steel core capped with 0.2mm of yellow gold. It is secured with a TUDOR “T-fit” folding clasp and safety catch, featuring a clasp logo made of solid yellow gold for a final touch of sophistication.
Warranty
Includes a five-year transferable guarantee, with no registration or periodic maintenance checks required.



















