Audemars Piguet  Royal Oak Offshore Chronograph 25721ST 1:1 Superclone. It is a stainless steel watch with a white dial and a chronograph. It has a stainless steel case and a stainless steel bracelet.
Here are some of the specifications of the Audemars Piguet Royal Oak Offshore Chronograph 25721ST:
Case: 42mm diameter, 12.5mm thickness, stainless steel
Dial: White dial with applied gold hour markers and hands
Movement: Automatic AP caliber 2385
Power reserve: 40 hours
Functions: Hours, minutes, seconds, date, and chronograph