Patina for days!!! Gorgeous, freshly serviced 1960s IWC Calatrava in steel. The watch was recently purchased from Berne Horology in Hong Kong and has a one year service warranty. This watch is in very good condition for a watch from the 1960s. The patina on the dial is really something special and the reason I picked it up. While I'd love to keep it, it was an impulse buy and I know it won't get much wrist time. Debating holding onto it but figured I'd see if anyone would like to give it a new home. Watch runs well and keeps good time. Asking 1350 shipped worldwide. I am not interested in trades at this time and would only consider the following Longines models in excellent condition: Zulu Time 39mm in green, a Longines 39mm Legend Diver on bracelet or an Avigation Big Eye. These trades would require cash on my part to make them even. Straight sale preferred. Please comment on post before DM'ing to ensure a speedy reply. Model info below: 1960s IWC Calatrava (Steel) Case 1633805 Calibre 853 Movement 1624875