IWC Portugieser Yacht Club Moon and Tide Blue Dial Rubber Strap Watch 44mm - IW344001

The Portugieser Yacht Club Moon & Tide is the first IWC timepiece featuring a newly developed tide indication. A complex interplay of gravitational and centrifugal forces between the earth, the moon and the sun causes the tides. On most of the earth's coasts, there are two high tides per day, always precisely 12 hours and 24 minutes apart. The Portugieser Yacht Club Moon & Tide indicates the expected times for the next high and low water on a subdial at "6 o'clock". This is achieved by a reduction wheel train which translates the regular rhythm of the hours into the constantly shifting time sequence of high and low water. The double moon phase display at "12 o'clock" has been enhanced to show spring and neap tides and therefore also informs about the strength of the current tides. Spring tides, which bring particularly high water, occur at full moon and new moon. The 18-carat 5N gold case, blue dial, gold-plated hands and 18-carat gold appliqués underscore the maritime character of this timepiece. The IWC-manufactured 82835 caliber features a Pellaton winding system. Fitted with ceramic components, it boasts a power reserve of 60 hours.

Case:

18 ct 5N gold case

Diameter 44.6 mm

Height 13.4 mm

Screw in crown

See-through sapphire glass back

Water resistance 6.0 bar

Movement:

82835 Caliber

IWC-manufactured movement

Automatic winding

60 hours Power Reserve

Frequency 28800.0 vph (4.0 hz)

228 Components

25 Jewels

Côtes de Genève

Features:

Central hacking seconds

Pellaton automatic winding

Sapphire glass, convex, antireflective coating on both sides

Date display

Tide indication, double moon phase for the northern and southern hemisphere with integrated display of neap and spring tide

IWC Style #: IW344001