Strap for Speedmaster Reduced Stainless Steel / Silver / Bracelet / Schumacher

The lug width of the Speedmaster Reduced 3517.30.00 is 18.00mm. This measurement is determined by the distance between the strap attachment pins on the case. It is essential to verify that the strap you purchase is precisely 18mm to ensure proper fit and mechanical stability.

The best strap depends on your usage and personal preferences. For everyday versatility, a dark brown vegetable-tanned calf or a tortoise alligator are refined choices. For fidelity to racing DNA, black rubber on steel deployant clasp remains unbeatable. A burgundy shell cordovan adds sophistication for more formal occasions.

The change requires a precision tool—a spring bar tool. Insert the tip into the pin housing, gently lift to free the old strap, then insert the new strap pins into the slots. Verify that it is fully secured on both sides. On milanostraps.it every strap comes with detailed instructions. The Casati Milano atelier also offers strap change service by appointment.

Yes, all straps with 18mm lug width are compatible. On milanostraps.it the 18mm strap collection includes over 50 variants of exotic leather, calf, rubber and fabrics. Every strap is verified for geometric compatibility with the Reduced and is customizable in length, initials and stitching thread.

A quality leather strap, with vegetable tanning or alligator, typically lasts 3-5 years with moderate daily wear. Durability depends on exposure to moisture, sweat and frequent flexing. Shell cordovan tends to last longer thanks to its dense fiber. To extend life, it is advisable to rotate between two straps and dry thoroughly after water contact. Casati Milano offers 18-month warranty and repair and restoration services.