The new Graham London watch is set in a 48mm case. It is made of steel, treated with black PVD coating. The case carries a bezel, manufactured from the same material. The bezel safely holds a domed sapphire crystal, glare-proofed on both faces. The case-back is also fitted with a sapphire glass.
The model boasts PVD-treated steel right hand start/stop and reset pushers, adorned with Clous de Paris high grip motif. The water-resistance of the case is assured down to 50 meters.
The new Graham London Silverstone Tourbillograph Full Black watch is constructed around a self-winding calibre G1780 column wheel chronograph tourbillon movement. Ruthenium blackened, it demonstrates Haute Horlogerie finishing.
The mechanism incorporates a sand-blasted, manually chamfered and polished bottom plate and bridges, a column wheel with polished segments and black low-friction treatment as well as a ruthenium oscillating weight with a skeletonized rotor.
Adorned with 34 jewels, the caliber beats to the rhythm of 28,800 vibrations per hour and provides a 48-hour power reserve. It is also endowed with the Incabloc shock protection system.
The movement animates the functions, featured on a black dial. It exhibits contrasting Arabic numerals and a tachymeter scale on the external ring. The display offers central hours and minutes. Set within the dial are also small seconds, 30-minute and 12-hour counters. The chronograph function is also presented through a central seconds hand.
A special attention getter of the display is a tourbillion mechanism, presented in the opening at 11 o’clock. Its blackened cage is composed of 48 individual parts. The case represents a double bridge construction with a black PVD-treated upper bridge.
The new Graham London watch is teamed with a black croco strap, which joins to a black ceramic folding buckle.
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