Strap for Seamaster Aqua Terra 150M Master Chronometer 38 Stainless Steel / Black / Rubber

The Omega Aqua Terra 220.12.38.20.01.001 has a lug width of exactly 19.00mm. This is the internal distance between the two lugs. It is essential to verify this measurement before purchasing an aftermarket strap, as a buckle or strap sized at 20mm will not fit correctly. Measure with a digital caliper perpendicular to the case, between the internal points of the lugs.

The choice depends on use and aesthetics. For formal or office settings, we recommend vegetable-tanned alligator leather or tannin-tanned calf, which creates an elegant contrast with the brushed case finish. For marine or underwater environments, satin cotton/nylon NATO or vulcanized rubber ensure practicality and moisture resistance. Shell cordovan is a premium choice for durability and natural sheen. Milano Straps customizes every 19mm strap according to your color preferences and stitching thread choice.

The Omega Aqua Terra is equipped with straight bar lugs (spring bars). To change the strap: 1) Obtain a spring bar tool or access a thin bar; 2) Position the tool in the lug groove, gently pushing the spring downward; 3) Extract the bar completely; 4) Repeat for the other lug; 5) Place the new strap between the lugs; 6) Reinsert the springs until they click. If you are not experienced, a professional watchmaker can complete the operation in 10 minutes.

Only straps with a 19.00mm lug width are compatible. Milano Straps offers a dedicated collection of artisanal 19mm straps in alligator, calf, shell cordovan, NATO, and rubber, each verified in the laboratory before shipment. All are customizable in length, initials, and stitching thread color. The Casati Milano atelier also creates bespoke variants through personalized consultation.

Durability depends on material and usage. A vegetable-tanned alligator strap lasts an average of 3-5 years with daily use, developing aesthetically with natural patina. Tannin-tanned calf has a similar cycle, 3-6 years. Shell cordovan is more resistant, 5-8 years. Vulcanized rubber and NATO offer extended durability, 5-10 years, with minimal maintenance. Milano Straps provides an 18-month warranty on all artisanal straps and offers repair and maintenance services at the Casati Milano atelier.