Certina · DS

Strap for DS Powermatic 80

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

Lug width20 mm
Case diameter40 mm
ReferenceC026.407.16.037.00
FamilyDS
MovementETA caliber C07.111 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 C026.407.16.037.00

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The DS C026.407.16.037.00, seen from the bench

The Certina DS reference C026.407.16.037.00 is powered by the ETA C07.111 caliber with indication of hours, minutes, seconds and date. The automatic movement ensures the essential time-reading functions with a date complication. The DS series represents the sporty line of the Swiss brand with a focus on resistance and reliability.

Frequently asked questions

What is the lug width of the Certina DS C026.407.16.037.00?

The lug width of the Certina DS C026.407.16.037.00 is 20 millimetres. This dimension is measured between the spring bar pins located at 12 o'clock and 6 o'clock on the case. Once the original bracelet is removed, a digital calliper can be used to verify this measurement precisely, which determines compatibility with aftermarket straps.

What is the best strap for the Certina DS C026.407.16.037.00?

The choice of strap depends on intended use and aesthetic preference. For formal contexts, we recommend an alligator strap with vegetable tanning, which develops natural patina and imparts gravitas to the piece. For everyday versatility, an English calf strap in brown or taupe grey offers discreet elegance. For those prioritising technical practicality, a military-grade NATO fabric strap maintains the sporty heritage of the DS line.

How do you change the strap on a 20mm lug width watch?

Remove the original strap using a dedicated tool (spring bar tool) to compress the spring bar pins. Once extracted, the strap releases easily. Position the pins of the new strap into the case lugs and compress gently until the pin seats in the groove. Verify that both attachments are secured firmly before wearing the watch. If you prefer to avoid DIY, entrust the operation to a specialised watchmaker.

Is an aftermarket strap compatible with the Certina DS C026.407.16.037.00?

Yes, any strap with a 20mm lug width is compatible with the Certina DS C026.407.16.037.00. Always verify the technical specifications of the strap you intend to purchase. High-quality artisanal straps, such as those crafted from vegetable-tanned leather or shell cordovan, maintain construction standards that guarantee durability and aesthetics equal to OEM solutions.

How long does an artisanal leather strap last on a watch like the Certina DS?

The lifespan of a natural leather strap varies according to usage, climate, and care. On average, a well-maintained vegetable-tanned leather strap lasts 3–5 years with daily wear. Noble materials such as shell cordovan can exceed 5–7 years. The patina that develops is part of the natural beauty of the material. Avoid prolonged exposure to moisture and salt water, and occasionally apply a leather-specific conditioner to preserve elasticity and colour.

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