Jaeger-LeCoultre
Reverso 396245J— lug 20mm

The Jaeger-LeCoultre Reverso 396245J is fitted with a 20 mm lug width. This measurement is taken with a digital caliper positioned between the two lugs in the innermost area, parallel to the case. All 20 mm straps in the Milano Straps catalog are compatible with this reference.

For the Reverso 396245J in rose gold, smooth alligator leather in bordeaux or midnight blue represents the most coherent choice with the Art Deco aesthetic of the case. Box calf leather is ideal for daily wear, develops a personal patina over time, and maintains formal restraint. For less formal contexts, a cream and bordeaux two-tone NATO strap echoes the model's colonial origins.

The Reverso 396245J uses a standard 20 mm lug system with spring bars. To replace the strap, a dedicated forked screwdriver or spring bar tool is sufficient: compress the spring bar, remove the existing strap, and insert the new one. It is advisable to entrust the task to a watchmaker or specialized atelier to avoid scratching the rose gold lugs.

Yes. Any strap with a 20 mm lug width is compatible with the Reverso 396245J, provided the buckle or deployant is suitable for the strap thickness and the curvature of the lugs. Milano Straps offers a selection of artisanal 20 mm straps—in alligator, calf, NATO, and rubber—custom-made by the Casati Milano atelier, with finishes designed to enhance rose gold cases.

The lifespan of a leather strap depends on the quality of the tanning, thickness, and daily use. A high-end alligator strap with calf leather padding and hand stitching can last three to five years with ordinary maintenance: simply avoid prolonged water exposure and occasionally apply nourishing leather cream. Casati Milano straps are guaranteed for 18 months against manufacturing defects.