1 / 9Specifications
A concise reference view of the case, dial, bracelet and movement details buyers compare first.
Case
| Diameter | 39 mm |
|---|---|
| Thickness | 12 mm |
| Lug width | 21 mm |
| Shape | Round |
| Material | steel |
| Bezel | Fixed |
| Bezel material | Stainless Steel |
| Crown | Screw-Down |
| Crystal | Flat sapphire crystal |
| Water resistance | 10 bar / 100 m |
| Water Resistance Category | Swim |
Functions and complications
| Complications | Power Reserve |
|---|---|
| Complication count | 1 |
Reference details
| Gender | Men's |
|---|---|
| Production status | Active |
| Origin | Switzerland |
| Warranty | 5 years |
| Size category | Large |
Dial and bracelet
| Dial | Silver |
|---|---|
| Dial finish | Satin |
| Display | Analog |
| Lume | Super-LumiNova |
| Luminous display | Yes |
| Bracelet | Bracelet |
| Bracelet material | steel |
| Strap material | Stainless Steel |
| Strap color | Silver |
| Clasp | Folding Clasp |
Movement
| Calibre | Tudor Calibre MT5602 |
|---|---|
| Calibre family | MT56xx |
| Movement | automatic |
| Power reserve | 70 hours |
| Frequency | 28,800 vph |
| Jewels | 25 jewels |
| Stop Seconds | Yes |
| In House Movement | Yes |
Additional details
| Bezel Material Original | steel |
|---|
Recent price movement
Tracking 5 daily market snapshots since July 2026. The solid line shows the median delivered estimate and the dashed line tracks the lowest available offer.
About this reference
The Tudor Black Bay One M79663-0002 gives the 39 mm steel case a bright face through its satin silver dial. A fixed steel bezel, flat sapphire crystal and silver stainless steel bracelet keep the palette controlled, while the screw-down crown and 100-metre water resistance preserve the collection's practical intent. At 12 mm thick, the round case has presence without losing the clean proportions of the 39 mm format.
Its automatic MT5602 calibre is built on a Tudor/Kenissi manufacture platform and includes a full openworked tungsten monobloc rotor. The movement has 25 jewels, measures 31.8 mm across and 6.5 mm high, and uses a free-sprung variable-inertia balance with flat silicon hairspring at 28,800 vibrations per hour. It delivers 70 hours of power reserve and COSC Chronometer certification. Within the Black Bay One collection, this is the steel-on-steel 39 mm model with a silver dial.








