Patek Philippe Nautilus

Material
White gold.

Diameter (10-4 o’clock):
40.5 mm.

Thickness:
 12.2 mm. Water-resistant to 30m. Screw-down crown. Sapphire crystal case back.

Movement:

CH 28-520 C
Self-winding
Flyback chronograph
Central chronograph hand
60-minute and 12-hour monocounter
Date in an aperture