Omega
Speedmaster Moonwatch 310.30.42.50.01.003— lug 20mm
Omega Speedmaster Moonwatch 310.30.42.50.01.003: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.
Artisanal Note
"This model requires a precise 20mm lug width to preserve the original sartorial balance."
Technical Specifications
Omega 310.30.42.50.01.003The essential strap measurement.
Browse 20mm straps →310.30.42.50.01.003
Omega caliber 3861 Small Seconds, Hours, Minutes | Chronograph | Chronometer
The Heritage
Compatible Straps
Selected for the 20mm lug width of the Speedmaster Moonwatch
FAQ
What is the lug width of the Omega Speedmaster Moonwatch 310.30.42.50.01.003?
The strap width of the Speedmaster Professional 310.30.42.50.01.003 is 20 millimetres. This dimension is precise and certified: measure the straight-line distance between the spring bar attachment points inside the case to verify the compatibility of a strap.
What is the best strap material for this Omega model?
Alligator remains the optimal choice for formal elegance, while vegetable-tanned shell cordovan develops a deep patina over time that honours the brushed steel case. For daily wear, a thick canvas NATO or structured rubber offer mechanical resistance and tactile comfort.
How do I change the strap on my Speedmaster 310.30.42.50.01.003?
Use a spring bar tool (Y-shaped or lever type) to remove the spring bars inside the lugs. Insert the lever into the small lateral holes of the spring bar, gently lift to free the pin from the case seat, remove the old strap and fit the new one. The procedure takes just a few minutes and requires no specialized tools.
Can I use an aftermarket 20mm strap on this model?
Yes, any strap with a 20mm lug width is compatible. Verify that the strap ends have a 20mm width for at least 2-3 centimetres from the termination to ensure correct housing in the case lug pins.
How long does a leather strap last on a chronograph like the Speedmaster?
An alligator or vegetable-tanned calf strap lasts on average 3-5 years in daily wear, depending on frequency of changes and exposure to sweat, moisture and UV rays. Shell cordovan, thanks to fibre density, can exceed 7-8 years. Tropic rubber straps last 4-6 years before irreversible rubber hardening.
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