Certina · DS-1

Strap for DS-1 Powermatic 80 38 Stainless Steel / Black / Bracelet

Takes 19 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width19 mm
Case diameter38 mm
ReferenceC029.207.11.051.00 (aka: c0292071105100)
FamilyDS-1
MovementETA caliber C07.661 hours, minutes, seconds, Additional 24 hours Hand (adjustable) | date
Year2024
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-1 C029.207.11.051.00 (aka: c0292071105100)

Selected for the 19 mm lug width · workshop selection

All 19 mm straps →

The DS-1 C029.207.11.051.00 (aka: c0292071105100), seen from the bench

The Certina DS-1 C029.207.11.051.00 is a 38mm stainless steel watch embodying contemporary evolution of a Swiss icon from the 1960s. It features an ETA caliber C07.661 movement with hours, minutes, seconds, adjustable 24-hour display, and date indicator. The 19mm lug width accommodates proportional strap selection, while the satin-finished stainless steel case develops character through authentic patina over time.

Frequently asked questions

What is the lug width of the Certina DS-1 C029.207.11.051.00?

The lug width of the Certina DS-1 C029.207.11.051.00 is 19mm. This technical specification is essential for selecting compatible straps: a strap must measure exactly 19mm wide to fit correctly between the lugs, ensuring stability and security on the wrist.

Which strap is recommended for the Certina DS-1 C029.207.11.051.00?

For the Certina DS-1, we recommend alligator straps with vegetable tanning for formal elegance, full-grain calf leather for refined simplicity, or nylon NATO for daily versatility. Your choice depends on intended use: formal wear calls for alligator or calf; informal contexts suit NATO or structured rubber.

How do I change the strap on my Certina DS-1 C029.207.11.051.00?

To change the strap, use a spring bar tool. Position the forked end beneath the spring and push gently upward to release the strap from the lugs. Repeat on the opposite lug. When inserting your new 19mm strap, ensure the spring bars fit perfectly into the lug spaces and that the springs click firmly into position.

Can I use aftermarket straps on this Certina model?

Yes, any aftermarket strap with a 19mm lug width is compatible with the C029.207.11.051.00. However, we recommend selecting straps of equivalent construction quality to your watch: vegetable-tanned leather, robust stitching, and refined finishes ensure longevity and aesthetic coherence with the Certina's character.

How long does a leather strap last on the Certina DS-1?

A quality leather strap—alligator or calf—typically lasts 3–5 years with daily wear, depending on environment and maintenance. Exposure to sweat, humidity, and UV rays accelerates ageing. Regular care—gentle cleaning with a damp cloth and conditioning every 6–12 months—significantly extends strap lifespan.

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