Wednesday, June 15, 2011

Graham Silverstone Tourbillograph


You're not going to find any green on this tour-billion/chronograph timepiece, but I'm ok with that. In fact I think this watch pulls off the full black look just fine. Made by Graham London here are some of the specs for this $50,000(US) watch...

Functions
Column wheel chronograph (seconds, 30 minutes and 12 hours counter). Tourbillon mechanism
Hours, minutes, seconds
Calibre
Calibre G1780, automatic column wheel chronograph-tourbillon, 28’800 A/h (4 Hz),
Incabloc shock absorber
Blackened movement finished with perlages, manually chamfered and polished
edges, column wheel with silver polished segments on base cog wheel with black
low-friction coating, skeletonised rotor with “black gold” oscillating weight
34 jewels
Power reserve: 48 hours
Blackened tourbillon cage: 48 components, 0.485 grams. Off-centre construction at
11 o’clock. Complete see-through tourbillon. Two patents. Double bridge
construction with black PVD coated upper bridge. Black ruthenium balance
Case
48 mm steel with black PVD case
Steel with black PVD right hand start / stop and reset pushers with “Clous de Paris”
high grip pattern
Steel with black PVD with black carbon ring
Domed sapphire crystal, anti-reflective coating on both faces
See-through sapphire crystal case back
Water resistance
160 feet / 50m
Dial
Black dial with tachymeter scale on external ring
Rhodiated hands and numerals
Strap
Black croco
Black ceramic folding buckle




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