Rolex · Datejust 41 and 1908
Rolex 126334 vs Rolex 52508
13 published specifications differ between these two, and 2 are identical. Every figure below is what the manufacturer states for that reference; nothing is inferred from the other watch.
What differs
| Specification | ||
|---|---|---|
| Case | Oyster, 41 mm, Oystersteel and white gold. White Rolesor — combination of Oystersteel and white gold | 39 mm, 18 ct yellow gold, polished finish |
| Diameter | 41 mm | 39 mm |
| Water resistance | Waterproof to 100 metres / 330 feet | Waterproof to 50 metres / 165 feet |
| Crystal | Scratch-resistant sapphire, Cyclops lens over the date | Scratch-resistant sapphire |
| Bezel | Fluted | Domed and fluted |
| Dial | Bright blue, with highly legible Chromalight display with long-lasting blue luminescence | Intense white |
| Case back | Screw-down | Domed transparent case back with anti-reflective coating |
| Crown | Screw-down, Twinlock double waterproofness system | Domed |
| Bracelet | Oyster, three-piece solid links, Oystersteel | Leather strap, matt brown alligator leather |
| Clasp | Folding Oysterclasp with Easylink 5 mm comfort extension link | Double folding Dualclasp |
| Calibre | Calibre 3235, Manufacture Rolex | Calibre 7140, manufacture Rolex |
| Power reserve | Approximately 70 hours | Approximately 66 hours |
| Movement notes | Precision −2/+2 sec/day after casing. Instantaneous date with rapid setting and stop-seconds. | Precision −2/+2 sec/day after casing. Centre hour and minute hands with small seconds at 6 o'clock. Syloxi hairspring in silicon with patented geometry, and Paraflex shock absorbers. |
What is identical
Worth knowing as much as the differences: these are the specifications you cannot use to tell the two apart.
- Movement
- Perpetual, mechanical, self-winding; bidirectional self-winding via Perpetual rotor
- Certification
- Superlative Chronometer (official chronometer certification + Rolex certification after casing)
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 126334 against 39 mm on the 52508. 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.
Do not describe these the same way
The 52508 is rated to 50 metres and the 126334 to 100. A rating is a factory figure for a new watch with fresh gaskets, not a promise about a used one — but the gap still matters in writing. Describe the 52508 in words a buyer can act on, and do not let a template carry the 126334's language onto it.
One needs sizing, the other needs stock
The 126334 comes on a bracelet and the 52508 on a strap. They are different jobs at resale: a bracelet has to be sized and its removed links kept with the watch, because a buyer who receives it short of links has received an incomplete watch. A strap is a consumable — check whether the one on the wrist is the one that should be in the photographs.
Only one can be checked without opening it
The 52508 has a display back and the 126334 does not. You can read the 52508's movement — and photograph it for the listing — without breaking a seal. Verifying the 126334 to the same standard means opening it, which is a watchmaker's job and a water-resistance question afterwards.
What to check on each
126334
- Treat the fluted bezel as gold, because it is. White gold takes marks more readily than steel and the flute peaks are exactly where a careless polish rounds the profile.
- Check the flute edges are even all the way round. A bezel that has been polished shows flattened peaks on the side that sat against a desk, and the asymmetry is visible once you look for it.
- Note the clasp is an Oysterclasp rather than the Oysterlock used on the sports references — there is no safety catch, which is correct here and not a missing part.
52508
- Inspect the transparent case back for scratches and for the condition of its anti-reflective coating. It is a display window on the wrist side, it is the first Rolex case back here you can actually see through, and a marked one is immediately noticeable.
- Check the crown is the domed, non-screw-down type this reference specifies. Trying to screw down a crown that was never designed to screw down is a way to damage the stem and the case tube.
- Treat the 50 metre rating as the real constraint it is. This is the least water-resistant watch in this corpus by some margin and should be kept away from water entirely.
Sources
- Rolex official product page for reference 126334 (Datejust 41; Oyster 41 mm; Oystersteel and white gold) - Model case: Oyster; 41 mm; Oystersteel and white gold; Oyster architecture: monobloc middle case; screw-down case back and winding crown; Diameter: 41 mm; Material: White Rolesor - combination of Oystersteel and white gold; Bezel: fluted; Winding crown: screw-down with Twinlock double waterproofness system; Crystal: scratch-resistant sapphire with Cyclops lens over the date; Water resistance: waterproof to 100 metres / 330 feet; Movement: perpetual; mechanical; self-winding; Calibre: 3235; Manufacture Rolex; Precision: -2/+2 sec/day after casing; Functions: centre hour; minute and seconds hands; instantaneous date with rapid setting; stop-seconds; Oscillator: paramagnetic blue Parachrom hairspring with Paraflex shock absorbers; Winding: bidirectional self-winding via Perpetual rotor; Power reserve: approximately 70 hours; Bracelet: Oyster; three-piece solid links; Oystersteel; Clasp: folding Oysterclasp with Easylink 5 mm comfort extension link; Dial: bright blue with Chromalight display; Certification: Superlative Chronometer — retrieved 2026-09-22
- Rolex official product page for reference 52508 (1908; 39 mm; 18 ct yellow gold) - Model case: 39 mm; 18 ct yellow gold; polished finish; Diameter: 39 mm; Material: 18 ct yellow gold; Bezel: domed and fluted; Winding crown: domed; Crystal: scratch-resistant sapphire; Case back: domed transparent case back with anti-reflective coating; Water resistance: waterproof to 50 metres / 165 feet; Movement: perpetual; mechanical; self-winding; Calibre: 7140; manufacture Rolex; Precision: -2/+2 sec/day after casing; Functions: centre hour and minute hands; small seconds hand at 6 o'clock; stop-seconds for exact time setting; Oscillator: Syloxi hairspring in silicon with patented geometry and high-performance Paraflex shock absorbers; Winding: bidirectional self-winding via Perpetual rotor; Power reserve: approximately 66 hours; Bracelet: leather strap; material: matt brown alligator leather; Clasp: double folding Dualclasp; Dial: intense white; Certification: Superlative Chronometer; the page does not describe this reference as using the Oyster case architecture — retrieved 2026-09-22
Not affiliated with Rolex. Specifications are read from each manufacturer's own published documentation on the dates shown and may change; the manufacturer's current documentation governs.