PATEK PHILIPPE CALATRAVA WRISTWATCH - PLATINUM
Maker: Patek Philippe
Model: Calatrava
Reference: 2573/2
Date: 1960's (Serial number '429098')
Movement: Mechanical hand-wound, cal.23-300 (Serial number '793522')
Dial: Brushed silver, applied baton hour markers, subsidiary seconds target dial at the 6 o'clock position
Case: Platinum, three-piece construction, snap-on bezel and case-back, down-turned lugs
Strap: Crocodile leather (later replacement - Somlo London), original 18k white gold buckle stamped 'PPCo. Swiss'
Size: 33mm