Tourbillon Monopusher Chronograph

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On the rear side, ArtyA has developed a unique date function: an extra-large Calendar with a centrally positioned hand. This is a first for ArtyA – and probably for watchmaking as a whole. Like a conspiratorial wink, reserved for the owner of this unique timepiece alone, the extra-large Calendar is a genuine complication developed especially for the Tourbillon Monopusher Chronograph.

Technical Specifications:
MOVEMENT: Oval-shaped manual winding mechanical movement
NUMBER OF PARTS: Full movement: 304 Tourbillon cage: 63 
NUMBER OF JEWELS: 33 / Olive hole jewels, flat jewels
POWER RESERVE: 110 hours With chronograph engaged: 75 hours
CHRONOGRAPH: Tourbillon cage toothed rim drives the seconds counter
Column wheel 
TOURBILLON: Swiss anchor escapement Cage rotates once a minute
Cage weight: 0.45g
BALANCE WHEEL: Balance wheel balanced by gold screws
Diameter: 9.60 mm
FREQUENCY: 21,600 vibrations per hour
INDICATIONS: Hours, minutes
Power reserve: Timed minutes and seconds
Giant date on rear
CASE: Steel or engraved in 5N gold, with side inserts
Non-reflective, transparent sapphire crystal glass and back
CASE DIMENSIONS: Diameter: 44mm Thickness: 16mm
WATER RESISTANCE: 3 ATM
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