Certina DS Prime

Most Certina DS Prime references take a 16 mm watch strap: 19 of 30. The lug width follows the case size: 25 mm case → 13 mm, 32 mm case → 16 mm, 33 mm case → 16 mm and 39 mm case → 18 mm.

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Certina DS Prime lug width by case size

30 references measured. Updated 2026-10-29.

Case	Lug width	References	Watch strap attachment	For example
25 mm	13 mm	5	—	C0043101103700, C0043101111701, C0043101129700
32 mm	16 mm	12	—	C0042101103600, C0042101105600, C0042101603600
33 mm	16 mm	7	—	C0283101111600, C0283101605600, C0283101611600
39 mm	18 mm	6	—	C0042171103600, C0042171105600, C0042171603600

Questions about the Certina DS Prime

Do all Certina DS Prime case sizes take the same watch strap?

No. The lug width changes with the case size: the 25 mm case takes 13 mm, the 32 mm case takes 16 mm, the 33 mm case takes 16 mm and the 39 mm case takes 18 mm. Check your case diameter before you buy.