Strap for Seamaster Aqua Terra 150m Co-Axial 43 Annual Calendar Stainless Steel / Silver

The Omega Aqua Terra 231.13.43.22.02.002 has a lug width of 21mm. This measurement is specific to this model and represents the distance between the lugs of the case. It is essential to choose a 21mm strap to maintain aesthetic balance and avoid stress on the lugs.

For the 231.13.43.22.02.002 we recommend alligator straps (mahogany brown or black) for sartorial elegance, vegetable-tanned calf leather for versatility and natural patina development over time, or technical canvas NATO straps for sports contexts. The choice depends on intended use and personal colour preferences.

Strap replacement is done via the spring bars that protrude from the case. Using a strap tool or a small flat screwdriver, slightly spread the spring bar, remove the old strap and insert the new one. If the new strap is equipped with a spring deployment clasp, the replacement becomes even faster and requires no tools.

Yes. The 231.13.43.22.02.002 uses the standard 21mm lug width, widely available in the aftermarket. Online you will find compatible straps ready to ship, customizable in leather, colour and thread stitch. For bespoke craftsmanship, Casati Milano produces made-to-measure straps with personalized consultation.

A quality leather strap (alligator, calf, shell cordovan) lasts on average 3-5 years in daily use, varying based on tanning, climate and sun exposure. Vegetable tanning ages more slowly but develops a desirable patina; chrome tanning is more durable but less characterful. An FKM rubber strap lasts 5-7 years. Casati Milano guarantees 18 months on bespoke personalized straps.