IWC Portugieser Yacht Club Moon & Tide, reference IW344001.

This timepiece comes in a 44.6 mm 18k gold case, blue dial, tide indicator, double moon phase for the northern and southern hemisphere with integrated display of neap and spring tide, date display and sapphire glass. Blue rubber strap with textile inlay Powered by automatic, self-winding movement, calibre 82835, this watch has a power reserve of 60 hours.