Strap for Speedmaster Broad Arrow Co-Axial Rattrapante Stainless Steel / Inverted Panda

The lug width of the Omega Speedmaster Broad Arrow 3882.51.37 is 21 mm. This measurement is specific to this reference and does not correspond to the standard 20 mm or 22 mm widths found on other Omega chronographs. To verify it, measure the internal distance between the pins (the small bars that anchor the strap): it should be exactly 21 mm.

The choice depends on your use and personal style. For elegance, a vegetable-tanned alligator or shell cordovan strap will enhance the sophisticated character of the Broad Arrow. For pure sportiness, a brushed calf or technical rubber maintain functionality without compromise. We recommend a steel deployant buckle for security and practicality, especially on a robust wrist given the importance of the case.

The strap is replaced using the pins (small bars) that run horizontally through the lugs of the case. Use a dedicated tool (spring bar tool) to gently compress the pin and extract it. Insert the new strap by aligning the lug holes, then reinsert the pin until you hear a click to confirm closure. Make sure the pin is fully locked before wearing the watch. For delicate operations, a watchmaker can perform the change without any risk.

Yes, provided the lug width is exactly 21 mm. Many universal straps are designed for more common standards (20 mm or 22 mm) and may not fit correctly. Milano Straps offers a specific collection of 21 mm straps with various finishes (alligator, calf, shell cordovan, rubber) tested for precise compatibility with the Broad Arrow.

Durability depends on the material and use. A quality alligator with vegetable tanning maintains structural integrity for 4-6 years in regular use, developing natural patina. Shell cordovan lasts longer (6-8 years) thanks to the density of the leather and the absence of aggressive chemical treatments. Calf is more vulnerable to wear and scratches but remains inexpensive to replace. Technical rubber (FKM) offers superior resistance (8-10 years) with no maintenance. Casati Milano provides an 18-month warranty on every strap produced.