Certina · DS First

Strap for DS First Lady Ceramic Rose

Takes 18 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width18 mm
Case diameter35 mm
ReferenceC0142353701100
FamilyDS First
MovementETA caliber G15.211 Hours, Minutes, Small Seconds | Date | Chronograph
CaseCeramic, Stainless 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 First C0142353701100

Selected for the 18 mm lug width · workshop selection

All 18 mm straps →

The DS First C0142353701100, seen from the bench

The Certina DS First mounts the ETA G15.211 quartz caliber with functions of hours, minutes, small seconds, date and chronograph. The quartz movement offers precision and reliability for daily use. The C0142353701100 reference belongs to the DS collection characterized by the double security of the Swiss brand.

Frequently asked questions

What is the lug width of the Certina DS First C0142353701100?

The Certina DS First C0142353701100 features an 18mm lug width. This measurement is standard for this model and is critical for selecting the correct aftermarket strap. Manual verification with a digital calliper is recommended to confirm the exact depth and thickness of the lugs for optimal fit.

Which strap is recommended for the Certina DS First?

For the Certina DS First C0142353701100, we recommend an alligator strap with vegetable tanning (thickness 1.4–1.6mm) for an elegant profile, or shell cordovan calf leather for exceptional durability and rich patina development. For a sporting approach, a 1000D polyamide NATO or FKM rubber strap offers superior moisture and heat resistance.

How do you change the strap on this Certina watch?

Strap changes require extraction of the lugs using a springbar tool—a small metal implement positioned perpendicularly to the lug, with gentle pressure applied to the internal pin. The integrated lugs of the Certina DS First do not permit structural modification, so the replacement strap must be precisely 18mm. Professional artigianal assistance is advised to prevent scratching the ceramic bezel.

Which aftermarket straps are compatible with the Certina DS First C0142353701100?

All straps with standard 18mm attachment points are compatible with the Certina DS First C0142353701100, provided the internal lug thickness conforms (typically 1.4–1.6mm). Milano Straps supplies a curated range of 18mm straps in leather, NATO, and rubber, all verified for structural and aesthetic compatibility with watches in this category.

What is the lifespan of a leather strap on a watch like the Certina DS First?

An alligator strap with vegetable tanning typically lasts 3–4 years with daily wear and regular maintenance (damp cleaning, application of neutral protective creams every six months). Shell cordovan calf, being denser, may extend to 4–5 years. Longevity depends on ambient humidity, direct sun exposure, and rotation frequency with alternative straps.

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