Strap for Artelier Date 40 Stainless Steel / Black

The lug width is 21mm. This dimension is specific to this model and remains rare amongst contemporary timepieces. To verify your measurement, position a ruler perpendicularly across the lug holes: the internal distance between the two holes must be exactly 21mm. Incorrect measurement is the most common cause of purchasing incompatible straps.

Artisanal leather with vegetable tanning represents the most appropriate choice for this timepiece. A calf leather strap of 1.4–1.6mm thickness in browns, greys, or blacks amplifies the natural patina of the stainless steel case. Should you prefer greater versatility, canvas NATO straps in waxed fabrics offer durability without compromising proportions. For those seeking a sportive option, natural rubber in black or navy blue maintains the restrained elegance characteristic of this watch.

Strap replacement requires a specialised tool: a spring bar tool (a small metal instrument). Position the watch with the lugs facing upwards. Insert the small hook of the spring bar tool into the slot present on one of the two spring bars (the elastic pins that retain the strap). Gentle pressure releases the mechanism and the strap separates. Repeat the operation on the opposite lug. Fitting the new strap follows the reverse process: insert the spring bars into the new strap's holes, ensuring both attachments click securely into position.

Yes, absolutely. Aftermarket 21mm straps are compatible with your watch provided they are manufactured with lug holes of exactly 21mm internal width. Milano Straps offers an artisanal collection of 21mm straps in various materials: alligator leather, calf, NATO canvas, and natural rubber. Always verify lug width before purchase and consult the measurement guide to prevent errors.

An artisanal leather strap of quality, with vegetable tanning, typically lasts 4–6 years under daily wear, provided it receives proper maintenance. Longevity depends upon intensity of use, ambient humidity, and care applied. Vegetable-tanned leather develops a patina that narrates the watch's history, though wear to the fastening zone (buckle or deployant clasp) remains inevitable. Maintain your strap in dry conditions, avoid prolonged exposure to water and avoid aggressive oily applications. Once worn, the strap may be easily replaced without any damage to the case or movement of the timepiece.