Strap for Seamaster Aqua Terra 150M Co-Axial 36.2 Stainless Steel / MOP / Bracelet

The lug width of the 2504.75.00 model is 20mm. This measurement corresponds to the case lugs and is essential for selecting a compatible strap. You can verify it by measuring directly the space between the spring bar pins of the case with a caliper or ruler.

The best strap depends on your intended use. For formal occasions, we recommend cognac alligator or grey calf leather. For everyday versatility, navy calf leather maintains cohesion with the dial. Vegetable-tanned alligator is the prestige choice, developing a unique patina over time. For dirty environments, fluoroelastomer rubber offers lasting water resistance.

The Aqua Terra uses spring bars for strap attachment. Remove the spring bars with a dedicated tool or small lever, detaching from the opposite side of the lug. Insert the new strap into the two side openings of the case, ensuring the spring bars engage firmly in both lugs. Verify there is no lateral movement before wearing the watch.

Yes, any strap with a 20mm lug width is mechanically compatible. However, we recommend artisanal quality leather (alligator, calf, shell cordovan) to preserve the aesthetic of a Chronometer movement. Avoid inexpensive synthetic straps that contrast with the technical prestige of the watch.

A quality natural leather strap (alligator or vegetable-tanned calf) lasts 5-8 years of daily wear. Shell cordovan, thanks to its superior density, reaches 10-12 years. Durability depends on exposure to moisture, direct sunlight, and frequency of wear. Periodic maintenance (cleaning with a damp cloth, conditioning with natural wax) significantly extends longevity.