Omega
Speedmaster Reduced 3815.76.31— lug 18mm

The Omega Speedmaster Reduced 3815.76.31 features an 18mm lug width. This measurement is the distance between the spring bars that connect the strap to the case: it represents the standard dimension for this model and perfectly accommodates 18mm straps available in our catalog.

The choice depends on usage: for formal elegance we recommend black alligator with steel deployant; for superior durability and fascinating patina, shell cordovan represents the most advanced technical choice; for aesthetic and tactile sustainability, vegetable-tanned calf develops a visible history over time. The Speedmaster Reduced, thanks to its calibrated 39mm proportion, also accommodates sport straps in satin rubber or NATO without losing authority.

The procedure requires a specific tool (spring bar tool) to extract the spring bars from the case lugs. Position the strap on a flat surface, insert the tool tip into the thin hole of the spring, press gently until the bar retracts, and remove the strap. Repeat on the other side. Installing the new strap follows the reverse procedure: align the holes, reinsert the spring bars with calibrated pressure until they click into place. If you prefer to avoid risk, the Casati Milano atelier performs the change with guaranteed precision.

Yes, any strap compatible with 18mm lug width can be mounted on the case. Milanostraps are specifically designed for this measurement and guarantee perfect structural compatibility. Before purchase, verify the lug width of your watch to avoid ordering errors.

A quality alligator or calf strap, with proper maintenance (periodic cleaning, drying after water contact, conditioning every 6-8 months), lasts between 3 and 5 years. Shell cordovan, thanks to its superior molecular density, can reach 7-10 years. Our service includes an 18-month warranty on all custom-made straps created by the Casati Milano atelier.