Strap for Seamaster Aqua Terra 150M Co-Axial 38.5 White Gold / Diamond / Silver / Bracelet

The lug width (strap width) is 20 mm. This is the internal distance between the two ends of the case where the strap is inserted. It is essential to verify this measurement before purchasing an aftermarket strap to ensure perfect compatibility and correct aesthetics on the watch.

Alligator represents the ideal choice for this reference, with regular texture and colors such as cognac brown or black that enhance the white gold. Excellent alternatives are vegetable-tanned calf, which develops a personalized patina over time, and shell cordovan for a sophisticated undulating texture. It is recommended to avoid rubber or fabric straps, which do not do justice to the precious case material.

The Aqua Terra straps are changed via the lugs passing from the case. You will need a tool to extract the spring bars (Omega knife, very thin screwdriver or specific tool). Position the watch on a stable surface, gently insert the screwdriver under the spring bar from inside the case, extract it carefully, then remove the old strap. To insert the new one, align the spring bar with the lug holes and push until the locking click. If you do not have experience, entrust it to a professional.

Yes, any strap with a 20 mm lug width is physically compatible. However, construction quality affects the user experience: leather thickness, lug finishing, deployant solidity and durability over time vary considerably between manufacturers. On a luxury watch like the Aqua Terra in white gold, it is recommended to choose artisanal straps that respect Swiss construction standards.

The lifespan of a high-quality artisanal leather strap ranges between 3 and 5 years depending on daily use, exposure to moisture, sweat and climate variations. An alligator or shell cordovan strap tends to last longer than a standard calf strap. Periodic maintenance (cleaning, possible application of specific leather products) significantly extends the useful life. Milan Straps provides an 18-month warranty on all straps created in atelier.