The IWC Portugieser Yacht Club Moon & Tide Ref. IW344002 combines sophisticated nautical functionality with a robust stainless steel construction and a sporty, refined aesthetic. Its 44.6 mm stainless steel case frames a striking black dial protected by convex sapphire glass with antireflective coating on both sides, while the stainless steel bracelet complements its contemporary character. The watch features IWC’s tide indication, a double moon-phase display for the northern and southern hemispheres with integrated neap and spring tide indications, as well as a date display and central hacking seconds. Its silicon hairspring provides increased protection against magnetic fields, enhancing the movement’s reliability.

Powering the IW344002 is IWC-manufactured Calibre 82836, an automatic, self-winding movement equipped with the Pellaton automatic winding system and a 60-hour power reserve. Operating at 28,800 vibrations per hour (4 Hz), the movement comprises 232 components and 25 jewels and can be viewed through the synthetic sapphire crystal case back. Measuring 44.6 mm in diameter and 13.4 mm in height, the stainless steel case offers 10 bar of water resistance. With its advanced tide and moon-phase indications, magnetic-resistant silicon hairspring and distinctive maritime design, the IW344002 is a technically sophisticated luxury timepiece designed for enthusiasts who appreciate both precision and nautical heritage.