Strap for Speedmaster Reduced Stainless Steel / Black / Bracelet

The Omega Speedmaster Reduced 3539.50.00 uses a lug width of 18mm (center to center of the spring bars). This width is specific to this compact 39mm case model and is not compatible with 20mm straps. Verify by measuring the distance between the holes on the lug on your case.

For the racing character of the Speedmaster Reduced, we recommend black or dark brown alligator for sporty elegance, shell cordovan for structure and patina, or vegetable-tanned calf for predictable aging. For intensive daily use, nylon NATO or vulcanized rubber offer practicality without aesthetic compromise.

Remove the watch from your wrist. Using a spring bar tool or small needle, gently press inward to release the spring bar latch on one side and remove it completely. Repeat on the other side. Insert the new strap pins into the lugs, ensuring the springs lock correctly. The process takes just a few minutes without damaging the case.

No, the Speedmaster Reduced 3539.50.00 has 18mm lugs and is not compatible with 20mm straps. The pins would be too wide and would not fit correctly into the lug. Always verify the lug width before purchasing: milanostraps offers a dedicated selection of 18mm straps for this model.

A quality leather strap, with vegetable tanning or alligator leather, typically lasts 3-5 years with daily use, depending on sun exposure, humidity, and cleaning frequency. Premium shell cordovan and alligator last longer thanks to their denser structure. Periodic maintenance (brushing, conditioning) significantly extends longevity. Casati Milano offers an 18-month warranty on custom straps.