Omega
Speedmaster Broad Arrow 3159.50.00— lug 20mm
Omega Speedmaster Broad Arrow 3159.50.00: 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 3159.50.00The essential strap measurement.
Browse 20mm straps →3159.50.00
Omega caliber 3303 Hours, Minutes, Small Seconds | Date | Chronograph, Column wheel
The Heritage
Compatible Straps
Selected for the 20mm lug width of the Speedmaster Broad Arrow
FAQ
What is the lug width of the Omega Speedmaster Broad Arrow 3159.50.00?
The lug width is 20mm. This specific dimension determines the width of the compatible strap. To verify it, position a caliper in the lug seat: the distance between the two holes is exactly 20mm. Straps of 18mm or 22mm will not fit correctly.
Which strap should I choose for the Speedmaster Broad Arrow in rose gold?
For a 42mm rose gold 18k case, we recommend authentic alligator for classic elegance, vegetable-tanned calf for durability and evolving patina, or shell cordovan for those seeking extremely hard leather. Each material amplifies different aspects of the chronograph character: leather highlights the contrast between sporting rigor and aesthetic refinement.
How do I change the strap on an Omega Speedmaster Broad Arrow?
The Speedmaster Broad Arrow uses straight lugs. Remove the old strap by gently pushing the transverse pin with a dedicated tool (pin remover). Insert the new 20mm strap by aligning the holes, then reintroduce the pin until it stops. If the strap has a deployant clasp, ensure that the closure is reversible and functions correctly before wearing the watch.
Which aftermarket straps are compatible with the 3159.50.00?
All quality 20mm straps are compatible, provided they feature straight lugs and not curved ones. Whether alligator, calf, cordovan, NATO or rubber, compatibility is guaranteed by the size. Online you will find a complete selection of 20mm straps ready for shipment, customizable in sizes, initials and stitching thread color.
How long does a leather strap last on a chronograph like the Speedmaster Broad Arrow?
The duration depends on the material and usage. A vegetable-tanned calf strap lasts 3-5 years with daily wear; quality alligator exceeds 5-6 years. Shell cordovan can last over 10 years. On a 42mm watch used as an instrument, we recommend rotating two straps to extend the longevity of both and diversify the seasonal aesthetic.
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