Strap for Speedmaster Broad Arrow 1957 Stainless Steel / Silver

The lug width of the Omega Speedmaster Broad Arrow 321.12.42.50.02.001 is 20mm. This measurement is specific to the model and allows broad compatibility with artisanal straps. To verify that the strap is correctly sized, measure the interior of the lug from one attachment to the other: the distance must be exactly 20mm to ensure a precise and secure fit.

The choice depends on use and aesthetic preferences. Alligator represents the most sophisticated option, with a geometric texture that amplifies the legibility of the satin-black dial. For a patina that evolves over time, vegetable tanning offers authentic character. If you seek sports versatility, vegetable-tanned calf in dark tones combines elegance and practicality. For marine or sports environments, FKM rubber guarantees durability without compromising perceived quality.

Changing the strap is a straightforward operation: position the watch with the lug sides facing upward. Use a springbar tool to gently compress the pins that secure the strap to the lugs. Remove the old strap and insert the new one, snapping the pins into the recesses. Verify that both pins are correctly secured before wearing the watch. If you are unsure, the Casati Milano atelier offers strap-change service by appointment.

Yes, the 321.12.42.50.02.001 is compatible with any strap made with 20mm lugs. On milanostraps.it you will find a complete selection of artisanal 20mm straps in various leathers: alligator, calf, shell cordovan, and synthetic materials such as FKM rubber. All straps can be customized in size, initials, and choice of stitching thread for a bespoke experience.

Durability depends on material and use. An alligator or vegetable-tanned calf strap, with proper care, maintains structural integrity for 5-8 years of daily wear. Shell cordovan, renowned for exceptional durability, can last over 10 years. Exposure to humidity, sweat, and heat sources accelerates the natural aging of leather. Straps crafted by Casati Milano benefit from an 18-month warranty and can be restored through professional renewal service.