Calibre IO200 (Io from the name of one of Jupiter’s moons.)
Manually wound rotating movement with off-centre flying tourbillon, moon-phase display and power-reserve indicator.

INDICATIONS
Central hours and minutes, seconds on the tourbillon, power reserve, moon phases.
Moon phase located in the caseback at 9 o’clock, precision of 29.5 days, lacquered golden disc.

CONTROLS
Rapid push-piece in the caseback at 6 o’clock, manual push-piece to set the moon.

TOURBILLON
One-minute flying tourbillon (one-hour movement rotation)
Balance with adjusting screws on a flat spring
21’600 a/h, central ball-bearing system

MOVEMENT FEATURES
Rotating movement with eccentric flying tourbillon on double ball-bearing, exclusive ball-bearing system with triple rotation using one rigid plate and two mobile plates, mainspring barrel and going train [A2]rotate around the central ball-bearing system.
Dimensions: 33mm x 10.4mm (14 1/2 lignes)
Bearings: 4 ball-bearing races, 14 jewel bearings
Number of components: 215

POWER RESERVE AND WINDING
Approximately 110 hours.
Power reserve indicator located in the caseband (linear reading system with gauge).
Winding system located vertically in the caseback at 3 o’clock, two-position winder (folding key).

CASE
18k rose gold, white gold or platinum with matching buckle
Two windows in the caseband
Fir-tree engine-turned back
Dimensions: 45mm x 15.30mm
Sapphire Crystals: Non-reflecting domed sapphire crystal
Two domed sapphire crystals in the caseband, one domed sapphire crystal in the caseback
Water resistance: 3 ATM (30 metres)

DIAL AND HANDS
Dial in 18k gold. Hands ‘Skyscraper” style in 18k gold.

Download the Technical Specifications (PDF)

Jean Dunand