Immagine: 78,47 KBC1 Tourbillon Gravity
Technical characteristics
Movement
Mechanical hand-wound movement, Concord Caliber C100
21,600 vibrations per hour
38 jewels
84-hour (3 ½ day) power reserve
Functions
Hours – minutes
Seconds on the side of the tourbillon carriage
Power-reserve indicator
Trust index (indication of the balance amplitude)
Flyback chronograph (hours-minutes)
Case
18-karat white gold – white gold bezel with 7 black rubber-coated decorative elements
White gold back with DLC treatment (diamond-like carbon), opening onto the movement (sapphire crystal)
Dimensions : 48.5 mm x 18.5 mm
3.3 mm thick sapphire crystal, glareproofed on both sides
18-carat white gold crown with black rubber guard
External crankcase housing the tourbillon carriage
Water-resistant to a depth equivalent to 3 ATM
Dial
Machined metal with openings revealing the movement
Composed of twelve parts including four sapphire crystals
DLC-coated grid
Strap
Black vulcanized rubber
18-carat white gold folding clasp with Concord logo
Find information on the construction of the C1 Tourbillon Gravity on
www.c1-tourbillon.ch