Corum Golden Bridge Tourbillon Limited Edition

In 2010, Corum celebrates the thirtieth anniversary of its extraordinary Golden Bridge. During its thirty year history, its immediately recognizable esthetical codes and fascinating baguette movement have made the Golden Bridge an emblem of CORUM, and an icon of high horology.

To celebrate this anniversary in style, the watchmakers of the brand have worked together for two years to create the caliber CO213, a masterwork in terms of micromechanics, housing 182 components on a tiny baguette measuring 33mm by 3mm. Combining traditional watchmaking and high-end materials they write a new chapter in an already rich watchmaking history.

Indeed, CORUM has created the first baguette movement with a tourbillon escapement, housed in the world’s smallest cage – 8.5 mm in diameter – with an escapement in Silicium. Beating at 19’200 vibrations per hour, with a power reserve of 40 hours despite a miniaturized barrel, which is almost hidden by the movement, the new caliber CO213 has also been designed in line with the codes of high horology. Its plate and bridges are crafted in 18kt gold and hand-engraved with patterns replicating the shape of tree ferns from the Jura region, the cradle of watchmaking and home to CORUM. No detail has been left to chance; even the upper bridge of the tourbillon cage reproduces the characteristic shape of the brand’s emblem, the key crafted in titanium.
This movement is housed in the legendary Golden Bridge case. The dials are set behind the mechanism and are worked in various materials such as meteorite, enamel, semi-precious stones or mother-of-pearl with different finishes. On the bottom of the case the opening also takes the shape of a lock, echoing the brand’s mantra: “Unlock and Conquer”!

This expression of high horology is water-resistant to 30 meters. The Golden Bridge Tourbillon will be produced in 33 Unique Pieces only; 16 in red gold, 11 in white gold and 6 in Platinum.

Technical details
Reference:  213.100.55/0001 GR04

33 Unique Pieces
-Red Gold Model 16 pieces
-White Gold Model 11 pieces
-Platinum Model 6 pieces

Movement 
CO213
Mechanical baguette movement, hand-wound by a stem at 6 o’clock
Tourbillon with Silicium escapement
Slipping spring mechanism
Variable inertia balance adjustable by inertia-block
Frequency: 2.66Hz, 19’200 vibrations/hour
22 Jewels
18kt red gold hand-engraved plates and bridge
Power reserve of 40 hours

Functions
Hours, Minutes, Tourbillon

Case
34 x 51mm
Tonneau-shaped case made of 18kt red gold 5N, 18kt white gold, or Platinum
Polished and satin-finished surfaces
Fluted crown at 6 o’clock decorated with CORUM key
Sapphire crystal open back cover under the movement
Caseback engraved with CORUM logo and Unique Piece
Glass: Sapphire crystal
Water-resistance: 3atm (30 meters / 99 feet

Dial
Meteorite, enamel, semi-precious stones, mother-of-pearl
Different finishing of the dial
Applique hour indexes or without index
Black, red gold 5N or rhodium plated skeleton hour and minute baton hands

Strap
Black crocodile leather strap, hand-stitched
Buckle: Red gold or white gold tongue buckle

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