Strap for Speedmaster Reduced Stainless Steel / Blue / Bracelet / Cart

The lug width of the Speedmaster Reduced 3510.80.00 is 18mm, measured between the pins that support the strap. The lug depth is generally 4.5-5.5mm. To ensure a precise fit, we recommend measuring with a digital caliper the internal space between the case lugs.

Mississippian alligator with fine grain is the most elegant choice, enhancing the satin black dial. Vegetable-tanned calf offers robust character and ages beautifully. Shell cordovan guarantees superior durability and natural luster. For sports use, high-quality technical rubber remains reliable and practical.

Use a spring bar remover tool to depress the spring bar retainers on the pins. Gently extract the pins from the case, then remove the old strap and insert the new one, reinserting the pins into the lug slots. Ensure that the strap keeper is proportioned to the lug depth (4.5-5.5mm) to prevent lateral movement.

Yes, the 18mm lug width is standard and compatible with any aftermarket strap made for this size. Always verify the strap keeper depth (it must match the case's 4.5-5.5mm) and choose manufacturers who guarantee precision in stitching and finishing.

A quality leather strap (alligator, calf, shell cordovan) with vegetable tanning lasts an average of 3-5 years with daily use. Wear depends on rotation with other straps, climate, and maintenance. Leather transpires natural oils and develops patina; protecting the strap from excessive moisture extends its longevity. After 2-3 years, a cosmetic restoration at an artisanal atelier restores the original appearance.