Strap for DS 4 Two Tone / Silver / Bracelet

The lug width of the Certina DS-4 C022.410.22.031.00 is 20mm. This standard measurement is critical in strap selection, requiring precision construction and materials that resist deformation. A digital calliper allows you to verify the lug width directly between the two lugs on the case.

For the 38mm DS-4 in stainless steel, brown alligator represents the classical choice, guaranteeing natural patina and longevity. Vegetable-tanned calf leather offers contemporary awareness and visible aging. For sporty use, rigorous NATO or grey rubber enhance the technical spirit of the case. The decision depends on daily use and aesthetic context.

Strap replacement requires a specific tool (spring bar tool or pry bar) to insert and remove the elastic pins that secure the strap to the lugs. Atelier Casati Milano provides detailed instructions or performs the change by appointment. Do not force the pins; smoothness indicates correct execution.

All straps with a 20mm lug width are compatible. Milano Straps offers artisanal straps in alligator, calf, shell cordovan and NATO calibrated to this measurement, with robust spring bar passages and finishes that enhance the 38mm case-to-strap proportion.

A quality leather strap (alligator or calf) lasts between 3 and 7 years depending on daily use, humidity and care. Vegetable tanning naturally absorbs moisture; sweat and water accelerate wear. Rotating with NATO or rubber straps extends the overall lifespan of each individual strap.