Certina DS-1

Most Certina DS-1 references take a 20 mm watch strap: 55 of 66. The lug width follows the case size: 39 mm case → 20 mm, 40 mm case → 20 mm, 41 mm case → 20 mm and 43 mm case → 20 mm.

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Certina DS-1 lug width by case size

66 references measured. Updated 2026-10-29.

References that take a different watch strap

Questions about the Certina DS-1

Can two Certina DS-1 watches with a 39 mm case take different watch straps?

Yes. Of the 19 Certina DS-1 references with a 39 mm case, 16 take 20 mm and 3 take 18 mm. The reference number decides, not the case size alone.

Every Certina DS-1 reference