Strap for Seamaster Aqua Terra 150m Co-Axial 41.5 Day-Date Stainless Steel / Red Gold / Grey / Bracelet

The lug width of the Omega Aqua Terra 231.20.42.22.06.001 is 22mm. This measurement represents the distance between the two lugs on the case, measured from internal wall to internal wall. Verifying this dimension before purchasing an aftermarket strap is essential to ensure a perfect and secure fit.

For this model's red gold and stainless steel bi-metal case, we recommend straps in polished alligator or vegetable-tanned calf leather in shades such as black, dark brown, navy blue, or bordeaux. These materials emphasise the marine elegance of the blue sunburst dial and create natural chromatic harmony with the rose gold. For frequent marine use, a textile NATO or natural vulcanised rubber offers durability without aesthetic compromise.

Strap replacement requires a specific tool (spring bar tool) to remove the elastic pins securing the strap to the lugs. Remove the pins, slide off the old strap, and insert the new one whilst aligning the holes. Ensure the pins are fully inserted into both lugs, with the strap positioned correctly and free of twists. If inexperienced, entrust the task to a professional watchmaker.

Yes, you may use aftermarket straps of 22mm lug width. Ensure the strap is constructed from quality natural leathers (alligator, vegetable-tanned calf, shell cordovan) and respects the aesthetic proportions of the watch. Avoid synthetic materials and industrial polished leathers that do not dialogue with the sophistication of the Omega bi-metal. MilanoStraps offers customisable 22mm straps.

A quality natural leather strap (alligator, vegetable-tanned calf, shell cordovan) typically lasts 3–5 years under ordinary use conditions, with variations due to sun exposure, humidity, and usage frequency. Vegetable tanning develops patina over time, transforming into a biographical object. Natural rubber and NATO textile last longer (5–8 years) due to lower wear sensitivity. Casati Milano straps include an 18-month warranty.