Strap for DS First Ceramic Strap

The lug width of the Certina DS First C0144101605100 is 22mm. This measurement is taken at the deepest point between the two spring bar pins, where the strap inserts into the case lugs. An accurate digital calliper measurement should return a value between 21.8mm and 22.2mm to ensure optimal compatibility without friction or excessive movement.

For this model, we recommend a strap in vegetable-tanned Tuscan leather, such as the Carbone Suprema, which amplifies the sport-elegant character of the hybrid ceramic and steel case. The practical alternative is a NATO in technical polyamide for maximum versatility, or structured FKM rubber if you use the watch frequently in aquatic environments. Your choice depends on your lifestyle and the patina you wish to see develop over time.

The strap is changed using a dedicated tool (spring bar tool) to push the elastic pins inward, releasing the lugs. Position the tool tip in the small hole on one side of the lug and gently push towards the case centre, releasing the pin. Remove the old strap, insert the new one by aligning the holes with the elastic pins, and let it click into position. Verify that the strap is perfectly secure before wearing the watch.

Yes, the Certina DS First C0144101605100 is fully compatible with high-quality 22mm aftermarket straps, provided the lug measurement is accurate and the strap is manufactured with correct tolerances. Always verify that the seller measures and certifies compatibility. A 22mm strap from a reputable manufacturer will ensure smooth operation and no risk of damage to the case spring bar pins.

A vegetable-tanned Tuscan leather strap typically lasts 3–5 years of daily wear, depending on sun exposure, humidity and cleaning frequency. Vegetable-tanned leather develops a natural patina over time, but also gradual loss of elasticity. To extend longevity, we recommend avoiding prolonged water exposure, occasionally applying a natural conditioner, and rotating with other straps. With careful maintenance, the service life can reach 6–7 years.