Strap for Seamaster Aqua Terra 150M Master Chronometer 38 Stainless Steel / Silver-Waves / Bracelet

The Omega Aqua Terra 220.10.38.20.02.003 is fitted with a lug width of 19mm. This measurement represents the precise distance between the right and left spring bar attachment points on the case. It is essential to measure this correctly with a digital caliper before ordering a compatible strap, positioning the tool perpendicularly from inside to inside of the spring bars, excluding the thickness of the existing strap.

The 220.10.38.20.02.003 excels with three premium materials: vegetable-tanned alligator (grain texture reminiscent of scales, ideal for humid environments), satin English calf (chromatic versatility and elegant ageing), and shell cordovan (extreme longevity and golden patina over time). FKM rubber straps complete the sporty vocation for amateur diving. Each material reflects a different usage vision, none is universally "better".

The change requires a spring bar tool: position the tool under the spring bar (from one end only), push towards the centre of the case to release the spring, extract the bar. Repeat on the other side. When reinstalling, ensure that the internal spring is correctly positioned in its housing. Avoid forcing: Omega spring bars are engineered to ensure security without deformation. For precision, many owners entrust this operation to a certified Omega service centre.

All artisanal straps with a 19mm lug width are physically compatible. However, aesthetic compatibility is subjective: the Aqua Terra 220.10.38.20.02.003 with blue sunburst dial pairs magnificently with black alligator, cognac brown calf, navy blue rubber. At milanostraps.it you will find a collection of 19mm straps specifically curated for luxury watchmaking, customisable in finished sizes and stitching details.

A calf leather strap lasts on average 3-4 years of daily wear; alligator 4-5 years; shell cordovan can reach 7-8 years thanks to fiber density. Durability depends on exposure to moisture, perspiration and UV rays. A precaution that extends lifespan: rotate between two straps, allowing one to rest while you wear the other. The Casati Milano atelier offers 18-month warranty on personalised straps, covering premature wear from manufacturing defects.