New to the Master Control collection, this mechanism ensures you never lose sight of the moon phase, located in an aperture at 6 o’clock. In its stainless steel version perfectly matched with its sunrayed silver dial, the Master Control Calendar offers a complete calendar. Under a sapphire crystal case-back, the reverse of the watch reveals the components of its new generation caliber, which promises a 70-hour power reserve.

Technical Details

Case Material – Stainless steel

Case Diameter – 40 mm

Case Thickness – 10.95 mm

Water Resistance – 5 bar (50 metres)

Bezel – Fixed

Dial – Silver sunray-brushed finish with applied indexes and Dauphine hands; complete calendar display with day and month apertures; central red-tipped pointer date; moon phase and small seconds at 6 o’clock

Crystal – Sapphire crystal with anti-reflective coating

Case Back – Sapphire crystal, see-through

Strap Type – Interchangeable

Strap Material – Light brown calf leather

Strap Clasp – Stainless steel folding clasp

Specificities – Complete calendar with moon phase; jumping date mechanism; interchangeable strap system

JAEGER-LECOULTRE CALIBER 866

Movement Type – Automatic

Power Reserve – 70 hours

Jewels – 34

Frequency – 4 Hz (28,800 vph)

Winding – Automatic

Features – Hours, minutes, small seconds; day, date, month; moon phase; jumping pointer date