Strap for Seamaster Aqua Terra 150M Master Co-Axial 34 Stainless Steel / Diamond / Blue MOP / Bracelet

The lug width of the 231.15.34.20.57.002 model is 20mm. This measurement represents the distance between the two lugs where the strap attaches to the case. To verify compatibility, measure with a digital caliper from the outer edge of one lug to the outer edge of the other. The lugs on this model are straight, so it is preferable to choose straps specifically designed for straight lugs.

The best strap depends on your intended use. For pure elegance, cognac-colored or chocolate brown alligator enhances the teak dial with sophisticated texture. For daily versatility, vegetable-tanned calf leather offers natural aging and develops a unique patina. For marine or sports environments, rubber or NATO straps maintain technical functionality. The ideal approach is to alternate two straps: one in calf leather for regular use and one in rubber for aquatic situations.

The strap is changed using a spring bar removal tool with a dual tapered end. Position the tool in the lateral grooves of each lug to release the internal spring, then gently extract the suspension bar that supports the strap. Reverse the procedure to install the new strap. If you lack experience, it is advisable to consult a professional watchmaker to avoid damage to the movement or case.

Yes, any strap with a 20mm lug width is compatible with the 231.15.34.20.57.002, provided the lugs are straight (the Omega model uses straight lugs). Artisan leather, rubber, or technical material straps represent an excellent alternative to original Omega straps, offering customization for initials, choice of exclusive leathers, and stitch finishes. Always verify that the supplier specifies compatibility with 20mm straight lugs.

Durability depends on material and use. A calf leather strap with vegetable tanning typically lasts 3-5 years with daily wear, developing characteristic patina over time. Alligator, being denser leather, can reach 5-7 years. Durability decreases if frequently exposed to water, sweat, or high humidity. Since the 231.15.34.20.57.002 is water resistant to 150m, it is advisable to alternate with rubber or NATO straps during aquatic activities to preserve a fine leather strap.