Jaeger-LeCoultre Master Ultra Thin Perpetual Calendar Pink Gold

Owners widely praise the Jaeger-LeCoultre Master Ultra Thin Perpetual Calendar Pink Gold for its elegant, unbusy dial and sophisticated complications, noting its slender 9.2mm case wears thinner than expected. Reviewers highlight the redesigned Caliber 868 movement's 70-hour power reserve, improved escapement, and friction-reducing components, which are meaningful advantages for a perpetual calendar. The pink gold case paired with a blue dial is described as breathtaking, and subtle dial refinements like longer hour markers and deeper subdial circles enhance legibility. Owners note the moonphase is accurate for 122 years, with daily rates averaging +0.3 seconds, though some find the silver hands on an ivory dial difficult to read and report audible rotor sound from its ball bearing. The 39mm case size is a point of contention, with some finding it acceptable as lugs do not overhang, while others feel it is too large for smaller wrists.