Strap for DS 4 Big Size Silver Rose

The Certina DS-4 C0226101603101 features a lug width of 21 millimetres. This measurement is specific to the model and determines compatibility with aftermarket straps. To verify the lug width correctly, use a digital calliper positioned perpendicular to the seat where the spring bar enters the case, avoiding diagonal measurements that would skew the result.

For the 40-millimetre DS-4, we recommend a strap in cognac-brown alligator or vegetable-tanned shell cordovan: both materials offer geometric texture that naturally dialogues with the case's minimalist design in stainless steel. For a sportive-casual solution, a canvas NATO or vegetable-tanned calf strap provides chromatic versatility and extended comfort.

Strap removal on the C0226101603101 is performed by extracting the spring bars from the case seat. Use a dedicated spring bar tool for watches, inserting the tip into the spring bar seat and lifting upward to release the lug. Once the spring bar is removed, extract the old strap and position the new one, aligning the holes to the case seats. The spring bar must click into position, ensuring stable closure on both sides.

Yes, any strap with a certified lug width of 21 millimetres is compatible with the C0226101603101. Compatibility is guaranteed by width conformity; however, for optimal fit and spring bar longevity, we recommend verifying that the strap does not present excessive thickness in the case seat passage area, as the 21-millimetre lug width leaves reduced tolerance margins.

The longevity of a leather strap depends on the tannage, usage intensity and climate conditions. A natural alligator or vegetable-tanned shell cordovan strap typically lasts 3–5 years with moderate daily wear; the leather develops patina and grain over time, enriching itself aesthetically. Vegetable-tinted calf straps extend their lifespan to 5–7 years if subjected to controlled humidity conditions. Factors such as perspiration, direct sun exposure and lack of reconditioning significantly reduce this estimate.