Certina · DS-2

Strap for DS-2 Chronograph Flyback Stainless Steel / Black / Strap

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter43 mm
ReferenceC024.618.16.051.00
FamilyDS-2
MovementETA caliber 251.294 PRD Hours, Minutes, Small Seconds | Date | Chronograph, Flyback
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 C024.618.16.051.00

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The DS-2 C024.618.16.051.00, seen from the bench

The DS-2 is a flyback chronograph from the Swiss brand Certina, equipped with a quartz ETA caliber 251.294 PRD movement. The watch features hours, minutes, small seconds, date and flyback chronograph functions. The case integrates the DS (Double Security) system characteristic of the brand for greater shock and water resistance.

Frequently asked questions

What is the lug width of the Certina DS-2 C024.618.16.051.00?

The lug width (strap attachment width) of the Certina DS-2 C024.618.16.051.00 is 20mm. This dimension is standard for large-case watches (43mm) and ensures balanced proportions between strap and dial. Measure directly the internal space between the two metal attachment lugs to confirm.

Which strap is most suitable for the Certina DS-2 C024.618.16.051.00?

For the DS-2 we recommend an alligator leather strap for sportive elegance or vegetable-tanned calf for natural patina development. If you use the watch in humid environments, a tactical NATO or FKM rubber offer superior practicality. Your choice depends on use case: formal, daily wear, or aquatic.

How do I change the strap on my Certina DS-2?

Remove the watch from your wrist. Locate the spring bars or pin attachments on the case sides. Using a flat tool (protect the metal with cloth), gently push the pin inward until you hear a click-release. The old strap will fall free. Align the new strap and push the pin outward until you hear the locking click. Verify the strap is stable and symmetrical before wearing.

Are there certified aftermarket straps for the Certina DS-2 C024.618.16.051.00?

Yes. MilanoStraps offers a complete collection of artisanal 20mm-compatible straps: alligator, calf leather, shell cordovan, NATO, and technical rubber. Each strap is constructed with precisely engineered attachment points for perfect compatibility. You can choose colour, finish, and buckle type, including custom deployante clasps.

How long does a natural leather strap last on a daily-wear watch?

A quality leather strap (alligator, calf, shell cordovan) with vegetable tanning lasts 3–5 years of daily wear, provided it is protected from excessive moisture and dried after rain exposure. Ageing develops a beautiful patina. On occasional use, durability extends to 7–10 years. Rubber and NATO straps last 5–7 years before visible UV stress marks appear.

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