Strap for Seamaster Aqua Terra 150M Co-Axial 30 Stainless Steel / Diamond / MOP / Bracelet

The lug width of the Omega Aqua Terra 231.15.30.20.55.001 is 20mm. This measurement corresponds to the space between the spring bar pins of the case and determines strap compatibility. It is important not to confuse lug width with the case diameter, which on this model is 30mm.

The ideal strap depends on use and aesthetic preference. For formal occasions, we recommend black alligator or deep brown vegetable-tanned calf leather. For sports and marine contexts, fine-textured rubber or navy blue NATO straps guarantee durability and practicality. Alligator creates the most sophisticated contrast with the silver guilloché dial and gilt indices.

You will need a spring bar tool to remove the spring bar pins. Position the watch on a soft surface, locate the pins protruding from the sides of the case, insert the tool into the pin slot and gently push inward to release one end of the strap. Repeat on the other side. When fitting the new strap, ensure the pins click firmly into position.

Any strap with a 20mm lug width is compatible with the Omega Aqua Terra 231.15.30.20.55.001. On milanostraps.it you will find a collection of handcrafted straps in various materials (alligator, calf, rubber, cordovan) ready for shipment, as well as the option to order custom straps from the Casati Milano atelier.

Durability depends on the material and usage. An alligator strap with vegetable tanning lasts an average of 3-5 years with daily wear. Calf leather tends to last 2-4 years as it is more sensitive to moisture and perspiration. Rubber is more resistant (5-7 years) but less elegant. The standard warranty is 18 months. Wear includes loss of shine, small cracks and color variation, which for calf leather is part of the natural patina development process.