Duomètre à Quantième Lunaire 40.5

Courtesy of Jaeger-LeCoultre

Here's the scoop, straight from Jaeger-LeCoultre -

Movement 

• Mechanical manually-wound Jaeger-LeCoultre Calibre 381, crafted, assembled and decorated by hand 

• 21,600 vibrations per hour 

• 50-hour power reserve 

• 367 parts 

• 40 jewels 

• 7.25 mm thick 

• 33.70 mm in diameter 

• Two independent barrels 

Functions 

• Hours, minutes, seconds, and jumping stop seconds with zero/reset system, date, age and phase of the moon (for both hemispheres), power reserve 

• Regulator power reserve 

Dial 

• Crystalline grained 

• Pink gold appliques 

Hands 

• Hours and minutes : “leaf” type 

• seconds : baton type with pear-shaped counterweight 

Crowns 

• One crown to wind the watch and adjust the hours and minutes 

• One push-piece to adjust the date 

• One corrector to adjust the moon phase 

Case 

• ø 40.5 mm, thickness : 13.07 mm 

• 18-carat pink gold 

• Polished and satin-brushed finish 

• sapphire crystal, cambered on the dial side, hardness no. 9, glareproofed on front and back 

• water resistance : 5 bar 

Strap 

• in chocolate-toned alligator leather with 18-carat gold pin buckle 

Reference 

• Q6042521, 18-carat pink gold