Up for sale is this cool looking Omega Calendar with arrowhead index Lovely patina, unusual For sure Bought by me from original owner, who received it for 25 years in service, engraved backcase . G / S case in very really good condition, Clean and nice movement , keeps the time as it should with good amplitude (see picture) Winds smooth. Original crown in unusually fine condition looks almost new, Original plexi with logo. Cal 503 Ref. 2849 Series. 1688 ... in 1959 About 35mm without crown Asking for €400, Now only €300 Watch is located in Sweden sending within Eu for free , outside Eu contact for details