Jaeger-LeCoultre · Master Ultra Thin
Strap for Master Ultra Thin Moon White Gold / Grey / Alligator
Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
20mm
Lug width20 mm
Case diameter39 mm
Reference1363540 (aka: Q1363540)
FamilyMaster Ultra Thin
MovementJaeger-LeCoultre caliber 925/1 hours, minutes, seconds | date | moonphase
Year2017
CaseWhite Gold
Straps for the Master Ultra Thin 1363540 (aka: Q1363540)
Selected for the 20 mm lug width · workshop selection
Black Rubberized Alligator Strap with Red Tribal Stitching€185
Matte Dark Gray Alligator Strap€195
Matte Black Alligator Strap — Minimal Stitching€149
Vintage Brown Calfskin Strap — Natural Patina€98
Hammered calfskin strap in cuoio€98
The Master Ultra Thin 1363540 (aka: Q1363540), seen from the bench
The Jaeger-LeCoultre Master Ultra Thin ref. 1363540 is a 39 mm white gold case housing hours, minutes, seconds, date, and moon phase complications within an exceptionally thin profile. Powered by the Jaeger-LeCoultre caliber 925/1 in-house movement, this model exemplifies mechanical miniaturization through radical design choices including thinned bridges and reduced wheel sections finished with Côtes de Genève. The 20 mm lug width is the native specification for this reference and determines strap compatibility for replacement options.
The next step
The right strap isn't chosen. It is built, together.
From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only