Double Tourbillion Technique Black

Giới thiệu dòng Double Tourbillon Technique rất đặc biệt của Greubel Forsey (2014)-greubel-forsey-double-tourbillon-technique-black-www.donghothuysy.net-2.jpg Giới thiệu dòng Double Tourbillon Technique rất đặc biệt của Greubel Forsey (2014)-greubel-forsey-double-tourbillon-technique-black-www.donghothuysy.net-3.jpg Giới thiệu dòng Double Tourbillon Technique rất đặc biệt của Greubel Forsey (2014)-greubel-forsey-double-tourbillon-technique-black-www.donghothuysy.net.jpg

Reference number: 91002926

Movement: manually wound,Caliber GF 02s; 38.4 mm; height 12.15 mm; 43 jewels; 21,600 vph; variable inertia balance; 4-minute tourbillon with inner 1-minute tourbillon inclined at 30 degree; 4 coaxial series-coupled spring barrels; 120-hour power reserve

Functions: hours, minutes,subsidiary seconds; 4-minute indication on large tourbillon; power reserve indicator

Case: titanium with black ADLC coating, 47.5 mm, height 16.84 mm; sapphire crystal, transparent back

Band: sewn rubber strap, folding clasp

Price: $545,000