iwc GROSSE FLIEGERUHR Mode D'emploi page 16

— 1 6 —
t H E t E c H n I c a L R E F I n E M E n t S O F t H E B I G p I L O t ' S W a t c H
Your IWC watch shows you the time in hours, minutes and seconds, together with the
date and the power reserve. The mechanical movement with automatic winding has
42 jewels (synthetic rubies) and a power reserve of approximately 7 days (168 hours)
when fully wound. The engraved rotor winds the watch in both directions of rotation
via the Pellaton winding mechanism. Your Big Pilot's Watch is protected by a convex
sapphire glass of hardness grade 9 on Mohs' scale. The soft­iron inner case provides
protection against magnetic fields up to 32,000 A/m. Your watch is shockproof, anti­
magnetic and water­resistant 6 bar. To ensure that this extraordinary watch continues
to perform faultlessly in future, it is essential to observe a few important operating
instructions.
B I G p I L O t ' S W a t c H