Certina · DS-2

Strap for DS-2 Quartz Stainless Steel / Grey / 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
ReferenceC024.410.11.081.20
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 C024.410.11.081.20

Selected for the 21 mm lug width · workshop selection

All 21 mm straps →

The DS-2 C024.410.11.081.20, seen from the bench

The Certina DS-2 C024.410.11.081.20 embodies Swiss precision heritage with a rigorous philosophy: functionality first, aesthetics as consequence. This 40mm stainless steel sports watch features the reliable ETA F06.411 quartz caliber with hours, minutes, seconds and date functions. The 21mm lug width requires specific strap compatibility, making it suitable for both slim and robust wrists while maintaining wearability in formal and sporting contexts.

Frequently asked questions

What is the lug width of the Certina DS-2 C024.410.11.081.20?

The lug width of the Certina DS-2 C024.410.11.081.20 is 21mm. This dimension is measured between the terminals of the case where the strap attaches. It is a non-standard size compared to more common diameters (18mm, 20mm, 22mm), making it essential to verify compatibility before purchasing a replacement strap.

Which type of strap is most suitable for the Certina DS-2?

The Certina DS-2 C024.410.11.081.20 accommodates several solutions depending on usage. A vegetable-tanned leather strap with aged patina enhances the timeless character of the instrument; alligator adds discreet sophistication; NATO in heavy cotton offers sporting versatility; rubber with texture is ideal for warm climates and aquatic activities. The choice depends on the primary context of use.

How do I change the strap on this watch?

Strap replacement requires a dedicated tool called a spring bar tool. Position the tool beneath the lug (the metal terminal of the strap), apply gentle inward pressure to compress the internal spring, and extract the lug. Repeat on the opposite end. Insert the new strap following the reverse procedure. If uncertain of the process, consulting a specialised strap maker is advisable.

Are aftermarket straps available compatible with 21mm lug width?

Yes. Although 21mm is not a standard size in mass-production catalogues, specialised artisans offer custom straps for this specific dimension. Quality aftermarket straps permit experimentation with premium materials (alligator, shell cordovan, rare leathers) and finishes beyond standard options, significantly elevating the user experience of the instrument.

How long does a leather strap last on this model?

The lifespan of a leather strap depends on material quality, tanning method, daily use, and maintenance. A high-quality vegetable-tanned leather strap typically lasts 2-4 years with normal wear, during which it develops characteristic patina. With proper care (protection from excessive moisture, regular drying), useful life can extend further. Tropic rubber, by comparison, lasts 3-5 years without aesthetic degradation.

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.

Request an appointment →

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