Strap for Seamaster Aqua Terra 150m Co-Axial 41.5 Stainless Steel / Black / >15'000 Gauss

The Omega Aqua Terra 231.12.42.21.01.001 has a lug width of 20mm. This measurement is the essential parameter for selecting a compatible aftermarket strap. To verify it, measure the space between the two lateral lugs of the case. All our 20mm straps fit perfectly with this model.

The ideal strap depends on use and personal style. Vegetable-tanned alligator is the premium choice: it offers natural geometric texture and develops a fascinating patina over time. Full-grain calf leather is versatile and refined. For aquatic occasions, Tropic rubber maintains flexibility even when wet. A blue-white linen NATO adds casual, nautical character.

The strap is removed by extracting the spring bars that connect the strap to the case lugs. Use a dedicated spring bar tool or a small screwdriver. Position the watch with the strap facing upward, gently press the spring bar outward until it disengages, then pull out the strap. The operation takes just a few minutes and requires no special technical skills.

Yes, absolutely. The 231.12.42.21.01.001 is compatible with any strap featuring a 20mm lug width and standard spring bars. Our artisanal straps are specifically designed for this measurement and offer superior build quality compared to factory straps. Simply ensure the new strap has the same 20mm width to guarantee precise fit.

The lifespan of a leather strap depends on usage and care. Under normal conditions (absence of constant moisture and prolonged UV exposure), a superior quality artisanal strap lasts 2-4 years before replacement is needed. Vegetable tanning develops a beautiful patina over time. If frequently exposed to water, the cycle reduces to 1-2 years. Casati Milano straps include an 18-month warranty and can be regenerated through targeted repairs.