Rolex Submariner

Most Rolex Submariner references take a 20 mm watch strap: 62 of 82. The lug width follows the case size: 37 mm case → 19 mm, 40 mm case → 20 mm and 41 mm case → 21 mm.

Shop 19 mm Shop 20 mm Shop 21 mm

Rolex Submariner lug width by case size

82 references measured. Updated 2026-11-02.

Case	Lug width	References	Watch strap attachment	For example
37 mm	19 mm · 20 mm on 2	5	—	6204, 6205, 6536
38 mm	19 mm	1	—	6538
40 mm	20 mm	60	—	114060, 114060-0002, 116610ln
41 mm	21 mm	16	—	124060, 124060-0001, 126610LN

References that take a different watch strap

5508: 20 mm, not the 19 mm of most 37 mm cases
5510: 20 mm, not the 19 mm of most 37 mm cases

Questions about the Rolex Submariner

Do all Rolex Submariner case sizes take the same watch strap?

No. The lug width changes with the case size: the 37 mm case takes 19 mm, the 40 mm case takes 20 mm and the 41 mm case takes 21 mm. Check your case diameter before you buy.

Every Rolex Submariner reference

Other Rolex families

Inside each one the lug width often changes: it is the reference that decides.

All Rolex families → · Why the size changes inside a family →