An icon plays the transparency game
An unmistakable contemporary watchmaking icon, the Golden Bridge Automatic by Corum takes a new step in the field of innovation by providing an unprecedented variation on the theme of transparency. The watch thus treats its legendary baguette movement to a ‘showcase’ that is translucent on the back and sides, whereas once on the wrist it hides any external elements so as to reveal only the riches of its exceptional mechanism.
It turned plenty of heads when it was first presented in 1980. Since then, the Golden Bridge from Corum has been a perpetual source of fascination, appearing in tourbillon versions 2011, as well as in a new Golden Bridge Ceramic automatic interpretation in 2013.
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Never one to miss out on a challenge, the legendary Golden Bridge by Corum now defies optical laws. Exploring the mysteries of transparency, the watch reinvents design codes to reveal a 360° translucent architecture when it is not worn, while becoming opaque when attached to the wrist – which is thus hidden from sight so as to highlight the magic of the exclusive linear mechanism. The secret of this fascinating orchestration lies in a two-part sapphire dial featuring a metallic striped motif. This ingenious element is placed behind the caliber at the heart of a tonneau-shaped 18K red or white gold case fitted with four sapphire crystal faces forming the watch glass, the back and the sides. This stunningly transparent architecture creates a fascinating play on perspective, in turn concealing or revealing elements exterior to the watch itself. The hour-markers applied to the sapphire dial catch and hold the light, accentuating the overall depth effect, while the openworked hands add an airy touch.
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At the heart of this fascinating world of optical effects lies the exclusive Corum Caliber CO 313, an automatic baguette movement with linear winding. Equipped with a platinum linear oscillating weight and a slipping spring mechanism, this mechanical masterpiece beats at a frequency of 4 Hz (28,800 vibrations per hour) and is endowed with a 40-hour power reserve.
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Its 194 parts include a variable-inertia balance – a guarantee of long-term precision – and a barrel that is miniaturized so as not to disturb the overall verticality of the model. The mainplate and bridges are made of 18K red or white gold and feature a hand-crafted vertical guilloché motif delightfully accompanying the linear motion of the oscillating weight.
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A reflection of horological excellence, the new Corum Golden Bridge Automatic comes with a black crocodile leather strap fastened by a red gold pin buckle bearing the Corum key, and is water-resistant to 30 meters.
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Technical details
MOVEMENT
Movement number: CO 113 Winding system:
Manual Functions: Minute • Hour Power reserve: 40 hours
Frequency: 4 Hz, 28'800 vph Dimension: 14 3/4''' x 5''' Rubies: 19
Movement finishes: Bridges and plate in 18kt gold • CORUM logo engraved
on the bridge
CASE Shape: Tonneau-shape Dimension: 34.00 x 51.00 mm
Thickness: 11.35 mm Case material: Ceramic Crown material: 5N 18kt red
gold
• Engraved CORUM key Crystal: Sapphire crystal with anti-reflective treatment Back type: Screwed in open back cover in titanium grade 5 with black PVD treatment and with glare proof sapphire crystal Water-resistance: 30 meters / 3 ATM
• Engraved CORUM key Crystal: Sapphire crystal with anti-reflective treatment Back type: Screwed in open back cover in titanium grade 5 with black PVD treatment and with glare proof sapphire crystal Water-resistance: 30 meters / 3 ATM
HANDS Hour and minute: Baton • 5N
red gold-coated
STRAP
• Skeleton BRACELET Material: Crocodile leather Colours: Black Interhorn/Buckle: 19/18 mm Buckle type: Tongue buckle Buckle material: Stainless steel Buckle distinctive features: Engraved CORUM logo
• Black PVD treatment
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• Skeleton BRACELET Material: Crocodile leather Colours: Black Interhorn/Buckle: 19/18 mm Buckle type: Tongue buckle Buckle material: Stainless steel Buckle distinctive features: Engraved CORUM logo
• Black PVD treatment
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