Strap for DS 4 Silver

The Certina DS-4 C0224101603001 features a lug width of 20mm. This dimension represents the distance between the two lugs on the case and is essential for selecting a compatible strap. To verify the measurement, you can use a digital calliper with flat contacts, or contact Atelier Casati Milano for certified technical verification.

The choice of the best strap depends on usage and personal preferences. For formal and elegant wear, we recommend alligator leather or shell cordovan in dark shades (cognac brown, black, chocolate brown), which create a sophisticated contrast with the steel case. For sports or daily wear, a NATO strap in high-density canvas offers ease of replacement and durability. For aquatic environments, FKM rubber is ideal as it fully utilises the watch's 100-metre water resistance.

Changing the strap requires extraction of the spring bars from the case lugs. Using a dedicated tool (spring bar tool) or a thin blade, compress the elastic bar within one of the lugs, extract it from its seat, then repeat the operation on the other side. The new strap is inserted by reversing the process. We recommend entrusting this operation to an expert if you do not have the correct tool, in order to avoid scratches on the case.

Yes, any strap with a 20mm lug width is compatible with the DS-4 C0224101603001, provided the spring bars are standard (typically 1.5mm in diameter). Straps handcrafted by Atelier Casati Milano are custom-made specifically for this reference, guaranteeing ideal manufacturing tolerances and a finish that reflects the quality of the Swiss case.

The lifespan of a leather strap depends on frequency of use, climate conditions and quality of material. A high-quality calf leather or alligator strap, subjected to daily use in normal conditions (moderate temperature, not constantly exposed to humidity), has an average life of 5–8 years. Natural leather absorbs moisture and gradually thins from friction; however, it also develops a fascinating patina that characterises the piece. Shell cordovan, thanks to its natural density, can last 10–15 years. Periodic maintenance (gentle cleaning, conditioning with specific creams) significantly extends the life of the strap.