Strap for Seamaster Aqua Terra 150M Co-Axial 34 Yellow Gold / Diamond / MOP / Bracelet

The lug width of this model is 20 mm. This dimension is specific to the 34 mm case and is essential to ensure compatibility with aftermarket straps. Always measure from inside to inside between the pins to confirm the value.

For a yellow gold watch, dark brown alligator offers the best aesthetic contrast and amplifies the metal's glow. The most sophisticated alternative is burgundy shell cordovan, which creates a mature tonal harmony. For those who love natural patina, Italian vegetable-tanned calf is excellent and develops over time.

Use a springbar tool specifically designed for watches. Position the tip of the tool in the small hole of the pin, gently push downward to compress the internal spring, and slide the pin out of the lug. Work on a soft surface (cloth or mouse pad) to avoid scratches on the gold. Reverse the procedure to install the new strap.

An aftermarket strap from Milano Straps allows you to choose premium materials (alligator, shell cordovan, vegetable-tanned calf) with artisanal finishes and customization. The price is lower than an original Omega strap while maintaining high construction standards. Compatibility with the 20 mm lug width is guaranteed, as is reversibility: you can always return to the original strap.

A quality alligator or calf strap typically lasts 3-5 years with regular use and ordinary maintenance (periodic cleaning, protection from excessive moisture). Shell cordovan, being denser, can last 7-10 years. Durability depends on frequency of use, climate, and personal care. Milano Straps offers an 18-month warranty on bespoke straps.