Jaeger-LeCoultre Master Calendar

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Master Calendar is a wristwatch by Jaeger-LeCoultre.

This model in the series Master Control has a hand date display, a day and month window, a highly accurate moon phase, and power reserve indicator.

References

Jaeger-LeCoultre has produced many different Master Calendar watches to date.

Movement:

Self-winding manufacture movement JLC 924, 28,800 A/h
43 hours power reserve
339 components
41 jewels

Case:

18ct red gold or stainless steel
Ø 40.5 mm, H 13 mm
Domed sapphire crystal with anti-glare treatment
Sapphire crystal caseback
Waterproof to 50 m

Dial:

Silvered
Steel version: solar grinding, rhodinated indexes

Functions:

Hours, minutes, small seconds
Hand date, day of week, month
Moon phase with total precision over a period of 122 years
Power reserve

Bracelet:

Brown Alligator leather strap with double folding clasp or stainless steel bracelet