Vintage Men's Patek Philippe 18K Ref 3420 Anti-Magnetic Calatrava Cal. 27-AM 400 Watch A vintage Patek Philippe Calatrava Ref. 3420 men's watch in 18K yellow gold with anti-magnetic Cal. 27-AM 400 manual wind movement. Patek Philippe Calatrava men's watch with a hard to find anti-magnetic movement. Movement serial number 427910 dates this watch to the late 1950's to 1960's Movement Cal. 27-AM 400 - anti-magnetic 18 jewel manual wind currently timed electronically keeping perfect time! Has no gain or lost in 24 hour.. Case Ref. 3420 Case serial number: 427910 Solid 18K yellow gold case marked with hallmarked. External case diameter is 34 mm excluding lugs and crown. Good vintage condition with some very light scratches on the bezel, lugs, and case back all is removeable by case polisher if buyer request.... Has no scrathes on the original mica glass.. Genuine black colored leather band fit to 18.20 mm.. Original dial is in very good conditions just a light stain at below border signed it with red arrow please see photo.. the photos is not justice Watchself better the than photos please ignore some dusts on the watch and glass... Shipping by DHL to all europe delivery in 1-2 days..