Strap for DS-1 Powermatic 80 40 Stainless Steel / Silver / Bracelet

The lug width of the Certina DS-1 C029.807.11.031.00 is 20 millimetres. This measurement represents the external distance between the lugs of the case. It accommodates a wide range of contemporary artisanal straps, offering constructive flexibility without compromises on attachment precision.

Strap selection depends on intended use. For formal contexts, a French alligator in cognac tone offers refinement and natural patination. For sport environments, shell cordovan in whiskey shade ensures durability and premium texture. A canvas NATO in blue provides dynamic usability. A black vulcanised rubber strap enables maximum practicality in aquatic environments.

Strap replacement requires extraction of the spring bars positioned horizontally in the case lugs. Use a dedicated tool, gently push the bar to release the internal spring, remove the bar. Insert the new strap in correct position and reinsert the bar, verifying complete locking. The process requires approximately one minute and no specialist skills.

Yes. An artisanal strap of the exact 20mm lug width attaches perfectly to the case lugs without play or gaps. Construction tolerance is minimal (maximum ±0.5mm): quality artisanal straps respect this specification exactly. Always verify the stated lug width with the seller before purchase.

Durability depends on material, use and maintenance. French alligator with vegetable tanning lasts approximately 4-6 years in intensive daily use. Shell cordovan can last 6-10 years. Ordinary calfskin 2-4 years. Longevity increases with periodic cleaning, immediate drying after water contact and storage in controlled humidity environments. Casati Milano straps use Italian vegetable tanning, ensuring controlled ageing and maximum durability.