Strap for DS Action Diver

The lug width of the Certina DS Action C013.407.17.05.101 is precisely 20mm. This measurement corresponds to the distance between the two lugs on the case where the strap attaches. It is essential to verify this dimension with a digital calliper before ordering an aftermarket strap, as even minor variations (0.5mm) will result in incompatibility. Milano Straps provides a complete selection of 20mm straps customisable to your requirements.

The choice of strap depends on your primary use case. For elegant aesthetics, we recommend natural alligator with vegetable tanning: the fine texture contrasts beautifully with the rigid lines of the case. For daily durability and historical patina development, aged veal cresso offers robust character without pretence. If you seek absolute reliability in humid or outdoor environments, cotton Jacquard NATO is unbeatable. For versatile office-to-outdoor transitions, FKM rubber (Viton) maintains chromatic integrity across extended thermal ranges. Atelier Casati Milano personalises every option to your wrist specifications.

Strap replacement occurs through the integrated spring bar mechanism on the case. Use a dedicated spring bar tool to gently elevate the internal hook of the pin: the elliptical hole of the spring dilates, permitting bar extraction. Alternate both case sides for structural balance. Insert the new strap by aligning the holes to the 20mm lug width, then lower the pin until it seats fully. Verify that both sides are firmly secured before wearing. If you prefer to avoid direct manipulation, Atelier Casati Milano offers professional mounting service with complete lug passage inspection.

Yes, any strap with 20mm lug width is compatible with the C013.407.17.05.101, provided the attachment holes correspond to standard specifications. Milano Straps supplies exclusively certified artisanal straps in this dimension, crafted from premium materials: leather, cotton Jacquard NATO, FKM rubber. Each strap is hand-made to your wrist proportions, ensuring ergonomic comfort superior to mass-produced alternatives. Compatibility is guaranteed or returns are free of charge.

Leather strap longevity depends on tanning method and intensity of use. Vegetable-tanned veal (as supplied by Milano Straps) resists approximately 3–5 years in daily wear with regular maintenance: monthly cleaning, conditioning with neutral cream every 2–3 months, air-drying in ventilated environments after humidity exposure. Natural alligator, being denser, extends lifespan to 7 years or beyond. The patina developed over time testifies to authenticity and object history. When the strap begins showing structural failure (deep creasing, edge fraying), replacement is advisable. Milano Straps offers restoration and refinishing services to extend the functional life of your original strap further.