Strap for Master Ultra Thin Perpetual Pink Gold / Eggshell

The lug width of the Jaeger-LeCoultre Master Ultra Thin Q1142510 is 21 millimetres. This measurement is specific to the model and has been calibrated by JLC to maintain correct visual proportions of the 39 mm case. Always verify the internal measurement between the lugs before ordering a compatible strap.

Alligator is the canonical choice for the Master Ultra Thin Q1142510 in rose gold: the natural grain of the leather harmonises perfectly with the satin finish of the case. Alternatively, vegetable-tanned calf offers a patina that ages nobly, whilst shell cordovan guarantees structural rigidity and exceptional longevity. For sporty options, a silk-wool NATO or broguée rubber maintains aesthetic balance.

The Q1142510 uses standard 21 mm lugs with conventional pin attachments. To replace the strap, use a strap removal tool (a thin lever implement) to insert the spade horizontally into the lug hole and extract the pin shaft. Always work gently when handling rose gold to avoid scratching. If uncertain, entrust the task to a professional watchmaker or Casati Milano's service.

Yes, provided the strap is dimensioned for a 21 mm lug width. Verify the nominal width stated by the manufacturer and, if possible, measure directly between the lugs of the case with a digital calliper before ordering. Casati Milano straps and other online alternatives are available in the specific 21 mm size for this model.

Durability depends on material: quality alligator, with regular maintenance, lasts 3 to 5 years of daily wear; vegetable-tanned calf reaches 4 to 6 years; shell cordovan can exceed 7 to 8 years owing to fibre density. Maintenance consists of quarterly cleaning with a soft, damp cloth, and annual application of neutral balm. Direct exposure to sunlight and water significantly shortens strap life.