Specifications
- Reference
- 126500LN
- Family
- Cosmograph Daytona
- Category
- Chronograph
- Status
- Current
- Case material
- Oystersteel
- Case diameter
- 40 mm
- Case thickness
- 11.9 mm Third-party
- Lug-to-lug
- 46.5 mm Third-party
- Lug width
- —
- Water resistance
- 100 m
- Bezel
- Fixed, tachymetric scale
- Certifications
- Superlative Chronometer
- Calibre
- 4131 Official
- Power reserve
- about 72 h
Official product page · retrieved October 14, 2026
Does it fit your wrist?
Enter your wrist circumference. The watch appears to scale on the flat top of the wrist.
Comfortable
Lug-to-lug 46.5 mm on a flat top of 54.1 mm: 86 % of the width.
Lug-to-lug is 75 to 95% of the flat top, the usual comfortable range.
Measurements and sources
Brands rarely publish thickness, lug width and lug-to-lug together. Each observation below is kept separate, with who gave it.
Case thickness
| Value | Type | Source | Date |
|---|---|---|---|
| 11.9 mm | Third-party | Bob's Watches Retailer size chart; the page says dimensions were taken with digital calipers on watches in its inventory and from other reputable sources. Listed for ref. 126500LN. | October 14, 2026 |
Lug-to-lug
| Value | Type | Source | Date |
|---|---|---|---|
| 46.5 mm | Third-party | Bob's Watches Retailer size chart; the page says dimensions were taken with digital calipers on watches in its inventory and from other reputable sources. Listed for ref. 126500LN. | October 14, 2026 |
Lug width
Lug width is the gap between the lugs, where the strap fits. It is not lug-to-lug.
No source gave this figure yet.
Calibre source
Official Rolex · retrieved October 14, 2026
Other versions in the same case
These references differ only by dial, bracelet or bezel colour. The brand gives them the same case dimensions, so the figures on this page apply to them too.
Same brand in the data set
| Watch | Ø | Thickness | Lug-to-lug | Calibre |
|---|---|---|---|---|
| Air-King 126900 | 40 mm | 11.6 mm | 48 mm | 3230 |
| Datejust 36 126200 | 36 mm | 11.5 mm | 44 mm | 3235 |
| Datejust 36 (fluted bezel) 126234 | 36 mm | 11.5 mm | 44 mm | 3235 |
| Datejust 41 126334 | 41 mm | 11.9 mm | 46.5–47.5 mm⚠ | 3235 |
| Deepsea Challenge 126067 | 50 mm | 23 mm | 61 mm | 3230 |
| Deepsea 136660 | 44 mm | 17.7 mm | 51.5 mm | 3235 |
| Explorer 36 124270 | 36 mm | 11.5 mm | 44 mm | 3230 |
| Explorer 40 224270 | 40 mm | 11.6 mm | 46.5 mm | 3230 |
| Explorer II 226570 | 42 mm | 12.5 mm | 50.5 mm | 3285 |
| GMT-Master II 126710BLNR | 40 mm | 12 mm | 47.6–48 mm | 3285 |
| Land-Dweller 40 127334 | 40 mm | 9.7 mm | 46.5 mm | 7135 |
| Oyster Perpetual 34 124200 | 34 mm | — | — | 2232 |
| Oyster Perpetual 36 126000 | 36 mm | 11.6 mm | 44 mm | 3230 |
| Oyster Perpetual 41 134300 | 41 mm | — | — | 3230 |
| Oyster Perpetual 31 277200 | 31 mm | — | — | 2232 |
| Sea-Dweller 126600 | 43 mm | 15 mm | 50.1–51 mm⚠ | 3235 |
| Sky-Dweller 336934 | 42 mm | 14.1 mm | 50 mm | 9002 |
| Submariner 124060 | 41 mm | 12.2–12.5 mm⚠ | 47.6–48.2 mm | 3230 |
| Submariner Date 126610LN | 41 mm | 12.2–12.5 mm⚠ | 47.6–48.2 mm | 3235 |
| Yacht-Master 40 126622 | 40 mm | 11.7 mm | 47–47.3 mm | 3235 |
| Yacht-Master 42 (RLX titanium) 226627 | 42 mm | — | — | 3235 |