Strap for Seamaster Aqua Terra 150M Master Co-Axial 30 Sedna Gold / Linen / Bracelet

The lug width is 14 mm. This measurement is specific to the 30 mm Aqua Terra model in Sedna Gold. To verify compatibility, use a caliper to measure the distance between the lateral lugs of the case. A 14 mm strap ensures a precise fit with no gaps or lateral movement.

Alligator is the most recommended choice for this Sedna Gold reference. Its natural texture and subtle sheen maintain aesthetic harmony with rose gold. Dark shades such as black, dark brown, or burgundy amplify formal elegance. For a softer alternative, vegetable-tanned calf leather pairs perfectly and develops a natural patina over time.

Position the watch on a soft surface. Use a spring bar removal tool to access the small springs that hold the strap to the lugs. Gently push inward to release one end of the spring bar, then remove the strap. To install the new strap, align one side first, then push the spring bar into the opposite lug seat until it clicks. Ensure both sides are securely fastened before wearing the watch.

Yes, provided the lug width is exactly 14 mm. Quality artisanal straps, such as those available from Milano Straps, are fully compatible and often offer superior customization and construction quality compared to official Omega replacements. Always verify dimensions and choose noble leathers for aesthetic cohesion with the Sedna Gold.

A quality leather strap, such as alligator or vegetable-tanned calf, has an average lifespan of 5-7 years with moderate daily use. Wear manifests as stitching separation or leather thinning. To extend strap life, alternate use with other models, avoid prolonged exposure to saltwater, and apply leather-specific conditioner once yearly. Casati Milano offers an 18-month warranty on bespoke straps.