TUDOR · Pelagos and Pelagos
TUDOR M25600TN-0001 vs TUDOR M25610TNL-0001
5 published specifications differ between these two, and 9 are identical. Every figure below is what the manufacturer states for that reference; nothing is inferred from the other watch.
What differs
| Specification | TUDOR Pelagos 42, titanium and steel, 500mM25600TN-0001 | |
|---|---|---|
| Case | 42mm titanium and steel case with satin finish | 42mm titanium and steel case with satin finish, numbered steel case back |
| Bezel | Unidirectional rotatable bezel in titanium, graduated over 60 minutes with ceramic matt black disc and graduations with white luminescent material | Titanium unidirectional rotatable 60-minute graduated bezel with ceramic matt black disc and graduations with beige luminescent coating |
| Dial | Black with white index, date at 3 o'clock | Black, date at 3 o'clock with even numbered days displayed in red and odd numbered days in black |
| Crown | Titanium winding crown with TUDOR logo in relief; helium escape valve at 9 o'clock | Titanium screw-down winding crown at 9 o'clock with the TUDOR logo in relief; automatic helium escape valve at 3 o'clock |
| Calibre | Manufacture Calibre MT5612 | Manufacture Calibre MT5612-LHD |
What is identical
Worth knowing as much as the differences: these are the specifications you cannot use to tell the two apart.
- Diameter
- 42 mm
- Water resistance
- Waterproof to 500m (1,640 ft)
- Crystal
- Sapphire crystal
- Bracelet
- Titanium bracelet
- Clasp
- Folding clasp and safety catch in steel, with a bracelet extension system developed and patented by TUDOR
- Movement
- Self-winding mechanical movement with bidirectional rotor system
- Power reserve
- Approximately 70 hours
- Certification
- COSC
- Movement notes
- TUDOR states a five-year transferable guarantee with no registration or periodic maintenance checks required.
Stated for one, not the other
These rows cannot be compared, because one maker publishes the figure and the other does not. An empty cell is a gap in the manufacturer's documentation, not a gap in the watch — and not a licence to fill it in from the other column.
| Case back | not stated | Numbered steel case back |
|---|
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.
Different movements to verify and to service
The M25600TN-0001 runs the Manufacture Calibre MT5612 and the M25610TNL-0001 the Manufacture Calibre MT5612-LHD. 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
M25600TN-0001
- Describe the case as titanium and steel, which is what TUDOR publishes, rather than as all titanium. The clasp is specified in steel as well and the weight in hand reflects the mixture.
- Find the helium escape valve at 9 o'clock and confirm it is present and undamaged, since it is a functional valve rather than a decoration.
- Work the patented bracelet extension through its travel. It is an automatic spring mechanism, it sits inside the clasp, and a failed one is not obvious until the bracelet will not hold length.
M25610TNL-0001
- Confirm the crown is at 9 o'clock and the helium escape valve at 3. On this reference the two are reversed relative to the standard Pelagos, and a watch with them the usual way round is a different reference.
- Photograph the number engraved on the steel case back and record it, because a numbered back is part of what a buyer is acquiring.
- Check the date alternates red for even days and black for odd ones across a full change, which is specified behaviour rather than a fault.
Sources
- TUDOR official product page for reference M25600TN-0001 (Pelagos 42; titanium and steel) - Case: 42mm titanium and steel case with satin finish; Waterproofness: Waterproof to 500m (1,640 ft); Bezel: Unidirectional rotatable bezel in titanium, graduated over 60 minutes with ceramic matt black disc and graduations with white luminescent material; Dial: Black with white index; date at 3 o'clock; Crystal: Sapphire crystal; Movement: Manufacture Calibre MT5612 (COSC); self-winding mechanical movement with bidirectional rotor system; Power Reserve: Power reserve of approximately 70 hours; Winding Crown: Titanium winding crown with TUDOR logo in relief; helium escape valve at 9 o'clock; Bracelet: Titanium bracelet with folding clasp and safety catch in steel with bracelet extension system developed and patented by TUDOR; Guarantee: Five-year transferable guarantee with no registration or periodic maintenance checks required — retrieved 2026-09-23
- TUDOR official product page for reference M25610TNL-0001 (Pelagos LHD; titanium and steel; crown at 9 o'clock) - Case: 42mm titanium and steel case with satin finish; numbered steel case back; Waterproofness: Waterproof to 500m (1,640 ft); Bezel: Titanium unidirectional rotatable 60-minute graduated bezel with ceramic matt black disc and graduations with beige luminescent coating; Dial: Black; date at 3 o'clock with even numbered days displayed in red and odd numbered days in black; Crystal: Sapphire crystal; Movement: Manufacture Calibre MT5612-LHD (COSC); self-winding mechanical movement with bidirectional rotor system; Power Reserve: Power reserve of approximately 70 hours; Winding Crown: Titanium screw-down winding crown at 9 o'clock with the TUDOR logo in relief; automatic helium escape valve at 3 o'clock; Bracelet: Titanium bracelet with folding clasp and safety catch in steel with bracelet extension system developed and patented by TUDOR; 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.