TUDOR · Clair de Rose and 1926 Luna
TUDOR M35800-0001 vs TUDOR M91560-0001
10 published specifications differ between these two, and 3 are identical. Every figure below is what the manufacturer states for that reference; nothing is inferred from the other watch.
What differs
| Specification | TUDOR 1926 Luna, 39mm champagne moon phaseM91560-0001 | |
|---|---|---|
| Case | 34mm steel case with polished finish | 39mm steel case with polished finish |
| Diameter | 34 mm | 39 mm |
| Crystal | Domed sapphire crystal | Sapphire crystal |
| Bezel | Smooth steel bezel with polished finish | Smooth bezel in steel with polished finish |
| Dial | Opaline | Champagne-colour satin sun-brushed dial with applied numerals and moon phase indicator |
| Crown | Steel screw-down winding crown with a transparent blue spinel cabochon | Steel screw-down winding crown with the TUDOR logo in relief |
| Bracelet | Steel bracelet with steel attachments | Steel bracelet, 7 rows, satin-brushed external links, polished centre links |
| Calibre | Calibre T601 | Calibre T607-9 |
| Power reserve | Approximately 38 hours | Power reserve of approximately 38 hours |
| Movement notes | TUDOR does not describe this calibre as a Manufacture movement and lists no chronometer certification for this reference. A five-year transferable guarantee is stated, with no registration or periodic maintenance checks required. | TUDOR states no chronometer or Master Chronometer certification for this reference. It is not one of the in-house MT-series calibres used across the sports collections. |
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 100m (330 ft)
- Clasp
- Folding clasp with safety catch
- Movement
- Self-winding mechanical movement
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.
| Thickness | not stated | 10.1 mm |
|---|---|---|
| Lug width | not stated | 21 mm |
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
39 mm on the M91560-0001 against 34 mm on the M35800-0001. 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 M35800-0001 runs the Calibre T601 and the M91560-0001 the Calibre T607-9. 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
M35800-0001
- Quote the calibre as T601 and the reserve as approximately 38 hours. TUDOR does not call this a Manufacture movement and lists no COSC certification, unlike most of the references documented here.
- Expect it to stop after a day and a half off the wrist, and tell the buyer so, because thirty-eight hours is far short of the seventy most of the range carries.
- Inspect the blue spinel cabochon in the crown for chips and confirm it is seated. It is a set stone in a working, screw-down component.
M91560-0001
- Read the calibre before you quote anything. T607-9 is not a manufacture MT-series movement, carries no stated certification, and runs about 38 hours — roughly half what the sports references hold.
- Set the moon phase through a full cycle and check the disc steps cleanly without sticking or overshooting. Correcting a moon phase is fiddly, and a faulty one is a service visit rather than an adjustment.
- Avoid adjusting the moon phase while the calendar mechanism is engaged, and check the seller has not already damaged it by doing so — forcing a correction during the change-over window is the usual cause of failure.
Sources
- TUDOR official product page for reference M35800-0001 (Clair de Rose 34; steel; calibre T601) - Case: 34mm steel case with polished finish; Waterproofness: Waterproof to 100m (330 ft); Bezel: Smooth steel bezel with polished finish; Dial: Opaline; Crystal: Domed sapphire crystal; Movement: Self-winding mechanical movement, Calibre T601; Power Reserve: Power reserve of approximately 38 hours; Winding Crown: Steel screw-down winding crown, with transparent blue spinel cabochon; Bracelet: Steel bracelet with folding clasp and safety catch; steel attachments; Guarantee: Five-year transferable guarantee with no registration or periodic maintenance checks required — retrieved 2026-09-23
- TUDOR official product page for reference M91560-0001 (1926 Luna; 39mm steel case; moon phase indicator) - Case: 39mm steel case with polished finish; Lugs: 21mm lug width; Case thickness: 10.1mm; Waterproofness: waterproof to 100m (330 ft); Bezel: smooth bezel in steel with polished finish; Dial: champagne-colour satin sun-brushed dial with applied numerals and moon phase indicator; Crystal: sapphire crystal; Movement: self-winding mechanical movement; Calibre T607-9; Power Reserve: power reserve of approximately 38 hours; Winding Crown: steel screw-down winding crown with the TUDOR logo in relief; Bracelet: steel bracelet; 7 rows; satin-brushed external links; polished centre links; with folding clasp and safety catch; no chronometer or Master Chronometer certification is stated for this reference on the page — retrieved 2026-09-22
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.