Jaeger-LeCoultre
Polaris 9038180— lug 20mm

The lug width of the Jaeger-LeCoultre Polaris 9038180 is 20mm. To verify on your watch, measure with calipers the internal distance between the two lugs in the area immediately adjacent to the case, at the narrowest point.

For the steel Polaris 9038180, an alligator hornback strap is recommended for formal occasions, smooth calf leather for elegant daily wear, vulcanized rubber for sports activities or summer daily use. Nylon NATO highlights the watch's instrumental origins. In any case, the strap lug should be shaped or flexible to accommodate the integrated curve of the lugs.

The strap is removed with a dedicated springbar tool, inserted into the side hole of the lug to compress the spring bars. The operation is straightforward but requires care to avoid scratching the steel case. It is advisable to work on a soft surface and, if in doubt, consult a watchmaker or the Casati Milano atelier.

Yes, any 20mm aftermarket strap with a curved or flexible lug is compatible with the Polaris 9038180. Milano Straps offers a selection of artisanal 20mm straps in various materials and finishes, crafted to fit perfectly with the integrated geometry of the Polaris case.

Durability depends on the material and use: a quality alligator strap with proper tanning lasts 3 to 5 years with regular use. Calf leather tends to develop characteristic patina over time but is more sensitive to moisture. To maximize strap life, avoid prolonged contact with water and sweat, and rotate multiple straps. Casati Milano straps are covered by an 18-month warranty against manufacturing defects.