TUDOR · Black Bay Chrono and Black Bay Pro
TUDOR M79360N-0011 vs TUDOR M79470-0001
10 published specifications differ between these two, and 4 are identical. Every figure below is what the manufacturer states for that reference; nothing is inferred from the other watch.
What differs
| Specification | ||
|---|---|---|
| Case | 41mm stainless steel case with polished and satin-brushed finishes | 39mm steel case with polished and satin finish |
| Diameter | 41 mm | 39 mm |
| Bezel | Fixed stainless steel bezel with matt black anodised aluminium disc with tachymetric scale and silver markings | 24-hour graduated fixed bezel in satin-brushed steel |
| Dial | Black with silver counters, domed, date at 6 o'clock | Black, domed |
| Crown | Stainless steel screw-down winding crown with the TUDOR rose in relief; stainless steel screw-down pushers at 2 and 4 o'clock | Screw-down winding crown in steel with the TUDOR rose in relief |
| Bracelet | 3-link stainless steel rivet-style bracelet with polished and satin-brushed finishes | Riveted steel bracelet with polished and satin finish |
| Clasp | TUDOR T-fit rapid adjustment clasp | TUDOR T-fit clasp with rapid adjustment |
| Calibre | Manufacture Calibre MT5813 | Manufacture Calibre MT5652 |
| Movement | Self-winding mechanical chronograph movement with bidirectional rotor system | Self-winding mechanical movement with bidirectional rotor system, built-in architecture |
| Movement notes | Chronograph function with a date at 6 o'clock. TUDOR states a five-year transferable guarantee with no registration or periodic maintenance checks required. | TUDOR states a five-year transferable guarantee with no registration or periodic maintenance checks required. |
What is identical
Worth knowing as much as the differences: these are the specifications you cannot use to tell the two apart.
- Water resistance
- Waterproof to 200m (660 ft)
- Crystal
- Domed sapphire crystal
- Power reserve
- Approximately 70 hours
- Certification
- COSC
What the differences cost you
Each note below follows from the published figures in the tables above — what they mean for intake, for a listing, and for the handover. Nothing here estimates a price or a margin.
These reach different buyers
41 mm on the M79360N-0011 against 39 mm on the M79470-0001. Diameter is a poor predictor of how a watch actually sits, but it is the field buyers filter on, so the two land in front of different people. Do not let one listing's photographs or copy stand in for the other.
Different movements to verify and to service
The M79360N-0011 runs the Manufacture Calibre MT5813 and the M79470-0001 the Manufacture Calibre MT5652. Two consequences at intake: the service history that is normal for one calibre is not evidence about the other, and the calibre is the check that catches a movement swapped into the wrong case. Confirm the movement matches the reference rather than assuming it from the dial.
What to check on each
M79360N-0011
- Unscrew both pushers before testing the chronograph. They thread down against the case and will not operate until released, and pressing a screwed-down pusher can damage its tube.
- Screw both pushers and the crown back down afterwards and confirm each seats flush, since the 200-metre rating depends on all three.
- Run the chronograph for several hours rather than clicking it, because a movement short of amplitude gives itself away under the load of a running chronograph.
M79470-0001
- Do not try to turn the bezel. TUDOR specifies it as fixed, so an immovable bezel is correct and forcing it is how a good example gets damaged.
- Confirm the 24-hour bezel is satin-brushed steel with no rotating insert, which distinguishes this reference from the GMT models in the same family.
- Run the T-fit rapid adjustment through its positions and confirm each one locks under a firm pull.
Sources
- TUDOR official product page for reference M79360N-0011 (Black Bay Chrono; 41mm steel; tachymetric bezel) - Case: 41mm stainless steel case with polished and satin-brushed finishes; Waterproofness: Waterproof to 200m (660 ft); Bezel: Fixed stainless steel bezel with matt black anodised aluminium disc with tachymetric scale and silver markings; Dial: Black with silver counters, domed; date at 6 o'clock; Crystal: Domed sapphire crystal; Movement: Manufacture Calibre MT5813 (COSC) with chronograph function; self-winding mechanical chronograph movement with bidirectional rotor system; Power Reserve: Power reserve of approximately 70 hours; Winding Crown: Stainless steel screw-down winding crown with the TUDOR rose in relief; stainless steel screw-down pushers at 2 o'clock and 4 o'clock; Bracelet: 3-link stainless steel rivet-style bracelet with polished and satin-brushed finishes, with TUDOR T-fit rapid adjustment clasp; Guarantee: Five-year transferable guarantee with no registration or periodic maintenance checks required — retrieved 2026-09-23
- TUDOR official product page for reference M79470-0001 (Black Bay Pro; 39mm steel; fixed 24-hour bezel) - Case: 39mm steel case with polished and satin finish; Waterproofness: Waterproof to 200m (660 ft); Bezel: 24-hour graduated fixed bezel in satin-brushed steel; Dial: Black, domed; Crystal: Domed sapphire crystal; Movement: Manufacture Calibre MT5652 (COSC); self-winding mechanical movement with bidirectional rotor system; built-in architecture; Power Reserve: Power reserve of approximately 70 hours; Winding Crown: Screw-down winding crown in steel with the TUDOR rose in relief; Bracelet: Riveted steel bracelet with polished and satin finish, and TUDOR T-fit clasp with rapid adjustment; Guarantee: Five-year transferable guarantee with no registration or periodic maintenance checks required — retrieved 2026-09-23
Not affiliated with TUDOR. Specifications are read from each manufacturer's own published documentation on the dates shown and may change; the manufacturer's current documentation governs.