Classic Collection The Bi Retro.

• This spectacular watch is equipped with a ingenious automatic movement
• with jumping hours and retrograde minutes combined with a retrograde hand calendar.
• A window displays the hours in Arabic numerals while minute and date hands travel a circular segment before returning to their starting point in a fraction of a second.

Sport Bi Retro

• GG 7710 caliber. 42h power reserve . 3 arms Glucydur ring balance. Spiral flat. Lever escapement. 21 jewels. 28,800 A/h vibrations. Height of the movement 5.93mm, diameter 26.0mm with special Gérald Genta circular finish.
• Jumping hours and retrograde minutes + retrograde calendar.
• Steel case. Diameter 45 mm, 10,2 mm thickness. Steel bezel, steel set 2 rows 137 diamonds-2.33ct TW VS to VVS, rubber.
• Brass dial, brass with carbone fibre
• Leather wristband, steel, rubber
• Water-resistant 3 atm