Omega
Speedmaster (Non-Moonwatch) 311.33.44.51.04.001— lug 21mm
Omega Speedmaster (Non-Moonwatch) 311.33.44.51.04.001: 21mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.
Artisanal Note
"This model requires a precise 21mm lug width to preserve the original sartorial balance."
Technical Specifications
Omega 311.33.44.51.04.001The essential strap measurement.
Browse 21mm straps →311.33.44.51.04.001
Omega caliber 9300 Hours, Minutes, Small Seconds | Date | Chronograph, Column wheel | Chronometer, Co-Axial Escapement
The Heritage
Compatible Straps
Selected for the 21mm lug width of the Speedmaster (Non-Moonwatch)
FAQ
What is the lug width of the Omega Speedmaster (Non-Moonwatch) 311.33.44.51.04.001?
The lug width is 21 mm. This dimension is specific to this oversized Speedmaster model and is not interchangeable with 20 mm straps or other sizes. The measurement should be taken between the spring bars that connect the strap to the case lugs.
What is the best strap for the Omega Speedmaster 311.33.44.51.04.001?
The choice depends on intended use: alligator with vegetable tanning in cognac or black tones for sartorial elegance; structured calf for conscious aging potential; vulcanized rubber for performance in extreme conditions. The satin-finished steel deployant represents the natural complement for any leather strap.
How do I change the strap on the Omega Speedmaster (Non-Moonwatch) 311.33.44.51.04.001?
Remove the original strap using a spring bar removal tool to extract the bars from the case lugs. Insert the new 21 mm strap by aligning the holes with the bars, ensuring that the inner loop is perpendicular to the case. Verify that there is no lateral play before use.
Can I use a 20 mm aftermarket strap on this Speedmaster?
No, a 20 mm strap would create undesired lateral play and compromise both aesthetics and functionality. The 21 mm lug width is specific to this model and is not interchangeable with smaller sizes. We recommend using only certified 21 mm straps.
How long does a leather strap last on an Omega Speedmaster of this size?
Durability varies based on leather type and conditions of use: alligator and shell cordovan guarantee 4-6 years of regular wear; structured calf 3-5 years; more delicate leathers 2-3 years. Conscious aging of the leather increases aesthetic appeal over time, making the strap an evolving component of the watch.
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