IWC - BIG PILOT 5004 Serial number

HI,
Might be a stupid question. New to the forum and considering on purchasing a second hand IWC Big Pilot 5004 privately.
Where would I locate the serial number?

Cheers
Leo

Hi Leo, welcome to the forum. The Serial Number is on the caseback of the watch - in this photo below where the white smudge is. The number should match what's on the guarantee card. Do be very careful out there - as we always say, 'buy the seller, before you buy the watch'.

Good luck,
Thang

[](s1164.photobucket.com/user/teeveetee9/media/IWC-Big-Pilot-5004-Caseback-1024x833_zpsfdd5492a.jpg.html)

Thanks for the heads up.

Cheers
Leo