Strap for Master Ultra Thin Moon Pink Gold / Eggshell / Alligator

The lug width of the Jaeger-LeCoultre Master Ultra Thin 1362520 is precisely 21 mm. This measurement defines the distance between the case lugs and determines compatibility with any aftermarket strap. It is essential to verify this dimension before purchasing to avoid installation errors.

For a watch of this refinement, we recommend straps in alligator leather or vegetable-tanned calf with polished or embossed finishing. Alligator offers a natural texture that catches light beautifully, whilst vegetable-tanned calf develops an evolved patina over time. Alternatively, a steel bracelet with deployante clasp or silk NATO strap are elegant and practical choices. Your selection depends on intended use: formal or daily wear.

The strap is replaced by removing the spring bars that connect it to the case lugs. Use a dedicated spring bar remover tool to avoid damaging the case. Position the watch with the case facing downward, remove the old strap, insert the new one, and reinsert the spring bars until they click into place. If you lack experience, entrust the task to an authorised service centre or Casati Milano's bespoke service.

Yes, it is fully compatible with quality 21 mm aftermarket straps. We recommend brands that guarantee precision in tolerances and noble materials. Avoid generic synthetic leather straps, which do not honour the watch and may scratch the lugs. For an informed choice, browse our collection of 21 mm straps online or request personalised advice from Casati Milano.

A quality leather strap, if well maintained, lasts an average of 3–5 years with daily wear. Longevity depends on tanning method (vegetable-tanned lasts longer than synthetic), exposure to moisture, and frequency of wear. Alligator and shell cordovan are more resistant. To extend lifespan, avoid hot water, aggressive soaps, and store the strap away from heat sources. Casati Milano offers an 18-month warranty on manufacturing defects.