Strap for Seamaster Aqua Terra 150M Co-Axial 38.5 Stainless Steel / Silver / Bracelet

The Omega Aqua Terra 231.10.39.21.02.001 has a lug width of 20mm. This is the distance between the inner lugs of the case where the strap attaches. Be sure to measure correctly with a digital caliper before ordering a replacement strap.

The most recommended materials are: alligator dyed in dark blue or brown for nautical elegance; vegetable-tanned calf for a patina that ages beautifully; FKM rubber for sports and water use; pressed canvas NATO for chromatic versatility. The choice depends on your use case and personal aesthetics.

We recommend entrusting the strap change to a professional watchmaker to avoid damage to the lugs. If you decide to do it yourself, you will need specialized tools (lug removal tool, nylon mallet) and great care when removing and inserting the strap pins. Milano Straps 20mm straps arrive pre-drilled and ready for installation.

Yes, all straps in the 20mm collection are compatible with the Omega Aqua Terra 231.10.39.21.02.001. We offer models in alligator, calf, rubber and NATO, customizable in size, initials and thread color. Bespoke straps from the Casati Milano atelier are also available.

A quality leather strap lasts 2-4 years with daily wear, depending on perspiration, climate conditions and maintenance. Milano Straps alligator and vegetable-tanned calf straps, with proper care (drying after moisture exposure), exceed 4 years. We recommend preventive replacement before complete failure to avoid losing your timepiece.