Graham Silverstone Tourbillograph (SS / Black / Leather Strap)

MORE DETAILS

Condition:

Brand New

Case Size:

48 mm

Also Known As:

2TSASB02A

Gender:

Gents

Movement:

Automatic

Functions:

Hours, Minutes, Seconds, Chronograph, Tourbillon

Band Type:

Leather Strap

Signatures:

Graham

Included Items:

Manufacturer's Box and Papers

Description:

48 mm steel case
Steel with steel right hand start / stop and reset pushers with "Clous de Paris" high grip pattern
Steel bezel
See-through sapphire crystal case back
Column wheel chronograph (seconds, 30 minutes and 12 hours counter).
Tourbillon mechanism
Hours, minutes, seconds
Calibre G1780, automatic column wheel chronograph-Tourbillon, 28'800 A/h Ruthenium blackened movement with Haute Horlogerie finishing.
Perlages, sandblasted, manually chamfered and polished bridges and bottom plate
Column wheel with polished segments and black low-friction coating, ruthenium oscillating weight with skeletonized rotor and 925 sterling silver segment
Power reserve: 48 hours
Blackened Tourbillon cage: 48 components, 0.485 grams. Off-centre construction at 11 o'clock.
Complete see-through Tourbillon.
Double bridge construction with black PVD coated upper bridge.
"Black gold" balance
Black dial with tachymeter scale on external ring
Black snailed minutes & seconds counters
Rhodiated central & minutes hands with black Superluminova coating, Rhodiated chrono, hours, minutes and seconds counters hands, Rhodiated numerals
Black crocodile leather strap with steel folding buckle
Water resistance to 50 meters / 160 feet