Rolex Datejust II

Every Rolex Datejust II reference takes a 21 mm watch strap: all 3 we measured.

Shop 21 mm

Rolex Datejust II lug width by case size

3 references measured. Updated 2026-11-10.

CaseLug widthReferencesWatch strap attachmentFor example
41 mm21 mm3—116300, 116333, 116334