Omega
Speedmaster Reduced 3539.50.00 (aka: 35395000)— lug 18mm
Omega Speedmaster Reduced 3539.50.00 (aka: 35395000): 18mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.
Artisanal Note
"This model requires a precise 18mm lug width to preserve the original sartorial balance."
Technical Specifications
Omega 3539.50.00 (aka: 35395000)The essential strap measurement.
Browse 18mm straps →3539.50.00 (aka: 35395000)
Omega caliber 3220 Hours, Minutes, Small Seconds | Chronograph
The Heritage
Compatible Straps
Selected for the 18mm lug width of the Speedmaster Reduced
FAQ
What is the exact lug width of the Omega Speedmaster Reduced 3539.50.00?
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.
What is the best strap material for the Speedmaster Reduced?
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.
How do I change the strap on my Omega Speedmaster Reduced 3539.50.00?
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.
Can I use a 20mm strap on a Speedmaster Reduced 3539.50.00?
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.
How long does a leather strap last on the Speedmaster Reduced?
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.
The next step
The right strap isn’t chosen. It is built, together.
From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.
Request an appointment →By appointment only · Milan
The atelier's website: casatimilano.com