IWC PORTUGIESER TOURBILLON PERPETUAL CALENDAR 45mm IW504505 White
IWC PORTUGIESER TOURBILLON PERPETUAL CALENDAR 45mm IW504505 White
IWC PORTUGIESER TOURBILLON PERPETUAL CALENDAR 45mm IW504505 White

PORTUGIESER Current collection

TOURBILLON PERPETUAL CALENDAR

IW504505

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Gender Men
Movement type Self-Winding
CASE MATERIAL Platinum
GLASS Saphir
STRAP LOCK SYSTEM Fold Clasp
WATER RESISTANCE 30m
LIMITED EDITION 50
CASE BACK Saphir
POWER RESERVE 168h
CASE DIAMETER 45.00mm
STRAP MATERIAL Leather
WARRANTY 2 years
Flying Tourbillon

The tourbillon system was made to compensate the Earth’s gravitational force by mounting the escapement in a revolving cage. It gives the watch a better accuracy. This complication is known as one of the most difficult to make.

Perpetual Calendar

The perpetual calendar complication displays the day, date and month, but it requires less adjustment than an annual calendar. This complication knows the number of days in each month but it also knows the year so that it will automatically adjust for leap year. The next time a perpetual calendar will have to be adjusted is in the year 2100.

Moonphase

Watches featuring a moonphase complication display new moons, first quarters, full moons and last quarters.

Day Date

A day date watch displays the days of the week (from monday to sunday) and the date (between 1 and 31).

Date

The date is a small window on the dial which indicates the day of the month (between 1 and 31).

Power Reserve Indicator

The power reserve indicator tells you the time the watch will continue to function. It can either be seen on hand winding or automatic watches.

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