Strap for DS Podium Big Size Chrono GMT Aluminium

The lug width of the Certina DS Podium C0016399703700 is 21.00mm. This specification is critical for strap compatibility: a 21mm lug width is not interchangeable with other widths (20mm, 22mm). Always verify the technical specification before purchasing an aftermarket strap.

Material choice depends on intended use. For elegance and constructive durability, natural alligator or vegetable-tanned calf leather (4mm thickness) are ideal: they develop patina over time and age harmoniously with the watch. For dynamic environments or sport, 1000D nylon NATO straps resist moisture and tearing. For water activities, FKM (Viton) rubber is supreme: it does not absorb moisture and resists UV radiation.

Strap replacement requires removal of spring bar anchors from the inside of each lug. Use a dedicated spring bar tool to compress the pin and extract it from the lug. Once the case is free, mount the pins into the new strap, positioning the compressed end in the lug slot, then release with uniform pressure. Avoid hammers or sharp objects that would damage the strap.

Yes, provided the lug width is precisely 21mm. Aftermarket straps of quality, such as the artisanal options offered by Casati Milano and distributed via milanostraps.it, provide superior construction to OEM (original equipment manufacturer) straps in terms of thickness, finishing, and aesthetic character. Standard spring bars are universally compatible.

Durability varies based on frequency of use, climate, and maintenance. A vegetable-tanned calf strap, 4mm thickness, typically lasts 4–6 years with daily use and moderate perspiration. Natural alligator, with its structured grain, offers greater resistance to abrasion (5–7 years). Regular maintenance—drying after perspiration contact, annual conditioning with natural wax—significantly extends useful life. Leather degradation is also aesthetic: natural patina is desirable.