Certina · DS Prime

Strap for DS Prima Lady Shape Diamond

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

Lug width20 mm
Case diameter25 mm
ReferenceC0043101111701
FamilyDS Prime
MovementETA caliber F03.111 hours, minutes, seconds | date
Year2015
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 Prime C0043101111701

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The DS Prime C0043101111701, seen from the bench

The Certina DS Prime reference C0043101111701 is equipped with the ETA F03.111 caliber with hour, minute, second and date indications. The movement offers essential functions for daily use with the usual reliability of ETA calibers. The watch belongs to the DS Prime collection of the Swiss brand Certina.

Frequently asked questions

What is the lug width of the Certina DS Prime C0043101111701?

The lug width of the Certina DS Prime C0043101111701 is 20mm. This measurement represents the distance between the two pins holding the strap and must be verified with precision before ordering an aftermarket strap. Different sizes (18mm or 22mm) would not be compatible with the case and could damage the watch's lugs.

Which strap would you recommend for the Certina DS Prime C0043101111701?

For the C0043101111701, we recommend alligator or vegetable-tanned calf leather straps for formal contexts, as the case's understated elegance is enhanced by natural leathers that develop patina over time. For sporty and everyday versatility, a high-density cotton NATO or FKM rubber strap are valid technical solutions. All straps must have a 20mm lug width to ensure perfect compatibility.

How do you change the strap on a Certina DS Prime watch?

To change the strap, use a spring bar tool to gently extract the pins from the case. Position the tool in the lateral groove of the lug, push slightly inward to release the pin's tension spring, then extract the pin from the case holes. Repeat for the other side. When mounting the new 20mm strap, insert the pins into the case holes ensuring the safety spring locks correctly in place.

Is an aftermarket 20mm strap compatible with the Certina DS Prime C0043101111701?

Yes, any strap with a 20mm lug width is compatible with the C0043101111701, provided the pins are of the same type (typically universal standards). Quality aftermarket straps allow complete personalisation whilst maintaining the case's optimal proportions and the mechanical function of the security bar.

How long does a natural leather strap last on a Certina watch?

A vegetable-tanned leather strap, if subjected to ordinary maintenance (semi-annual hydration with natural oils and protection from rain), maintains structural integrity for 5-8 years of daily use. The patina that develops over time represents not degradation but aesthetic refinement. Lifespan depends on frequency of use, climate, sun exposure and the wearer's activity level. A rubber or synthetic strap guarantees longer longevity with minimal maintenance requirements.

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