Certina · DS-2

Strap for DS-2 Quartz Stainless Steel / Blue / Bracelet

Takes 21 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width21 mm
Case diameter40 mm
ReferenceC024.410.11.041.20
FamilyDS-2
MovementETA caliber F06.411 hours, minutes, seconds | date
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the DS-2 C024.410.11.041.20

Selected for the 21 mm lug width · workshop selection

All 21 mm straps →

The DS-2 C024.410.11.041.20, seen from the bench

The Certina DS-2 C024.410.11.041.20 is a 40mm stainless steel sports watch featuring an ETA F06.411 automatic movement certified by COSC standards. It offers 200 meters water resistance via screw-down crown, sapphire crystal, unidirectional bezel, and approximately 38-42 hours power reserve. The 21mm lug width suits the case proportions for everyday wearability.

Frequently asked questions

What is the exact lug width of the Certina DS-2 C024.410.11.041.20?

The lug width of the Certina DS-2 C024.410.11.041.20 is 21 millimetres. This dimension is measured from the inner edge of the left lug to the inner edge of the right lug, at the point where the strap seats against the case. Always verify with digital callipers before purchasing an aftermarket strap.

Which strap material pairs best with the Certina DS-2?

The DS-2 C024.410.11.041.20 accommodates versatile straps: hand-stitched vegetable-tanned leather in cognac or conker brown reinforces its elegant-sport character, whilst a NATO in slate or navy maintains its instrument-watch aesthetic. For intensive marine use, FKM rubber ensures durability and perspiration comfort in warm climates. Alligator in deep tones creates sophisticated contrast against polished steel.

How do I change the strap on the Certina DS-2 C024.410.11.041.20?

Remove the spring bar connecting the strap to the lugs using a dedicated tool or thin-bladed implement. Gently lever the spring bar to create clearance for withdrawal. Once extracted, the old strap slides away cleanly. Insert the spring bar into the new strap, seat both ends in the lugs, and press until you hear a click. The operation takes under one minute with familiarity.

Are third-party straps compatible with the Certina DS-2?

Yes, provided they are dimensioned for 21mm lug width. Any aftermarket strap with universal spring bar attachment and 21mm lug width integrates seamlessly. Milanostraps.it manufactures straps specifically engineered for this specification, hand-finished by master craftsmen with rigorous material selection and bespoke customisation options.

What is the service life of a leather strap on a sports watch like the DS-2?

A strap in vegetable-tanned leather typically performs for 3–5 years under normal daily wear. Exposure to saltwater, perspiration and ultraviolet radiation accelerates aging. For the DS-2, we recommend rotating with a NATO or rubber version during summer and water-intensive periods. The patina that develops naturally on leather over time is characteristic and reflects the watch's history.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only