GMT Earth by Greubel Forsey

The GMT Earth is a visually complicated timepiece. The watchmaker has challenged the limits of horology by placing a rotating three dimensional globe on the dial. The threedimensionality is also present in the hour, minute and small seconds and GMT indications, continuing onto the long hand for the power reserve. The globe simultaneously displays three time zones. Summer and winter times of additional 24 time zones are displayed in the “movement” section of the watch. The complex movement of the piece is revealed by its sapphire crystal case back. It has a power reserve of 72 hours. The limited edition watch in white gold has only 33 pieces available in the market. greubelforsey.com

Strap: Black rubber or hand-sewn alligator with a white gold folding clasp

Case diameter: 45.50mm

Water resistance: 30 metres