Strap for Seamaster Aqua Terra 150M Master Chronometer Small Seconds 38 Stainless Steel / Sedna Gold / Green / Bracelet

The Omega Aqua Terra 220.20.38.20.10.001 has a lug width of 19 millimetres, measured from the outermost hole of the right lug to the outermost hole of the left lug. This dimension is standard for the 38 mm cases in this family and determines precise compatibility with aftermarket straps.

For the two-tone Sedna Gold and stainless steel case, we recommend alligator in cognac or dark brown tones, which enhances the warmth of rose gold, or vegetable-tanned calf leather that develops a rich patina over time. For sport-chic styles, black rubber with steel inserts. Burgundy shell cordovan represents a rare, minimalist luxury option.

Strap replacement is performed by removing the spring bars from the case lugs with a dedicated tool (spring bar tool). Gently extract the bar from both sides, remove the original strap, and insert the new 19 millimetre strap by aligning it with the lugs. The bars must click into position with a small 'click'. If you are not experienced, consult a professional watchmaker.

Yes, any strap with a lug width of 19 millimetres is compatible with the Aqua Terra 220.20.38.20.10.001. Compatibility is determined solely by lug width, regardless of the material chosen (leather, rubber, fabric) and the aftermarket strap brand.

A high-quality alligator or calf leather strap, worn daily with proper care, typically lasts 4-6 years before showing significant signs of wear. Longevity depends on frequency of use, exposure to sunlight and humidity. Artisanal straps with vegetable tanning tend to age better aesthetically, developing an appreciated patina. Casati Milano warranty covers manufacturing defects for 18 months.