Here is a Vintage WWII Hamilton Model 22 Double Boxed Chronometer Watch... "Very Low" S.N. 2F137 from 28,000 or so of the Total Produced... Original 3 Chapter Ring Dial that has Oxidized from a Chemical Reaction of Some Kind... The Winding Indicator Works Perfectly... Timepiece Has Been Serviced... The Early Style Lock and Key Box is Very Nice... Note: Key Included !!!  I had the Mounting Box Tag Made to N137 to Match the Movement S.N. N137 Photo No. 8... Outer Carrying Box has Original Finish with Original Leather Strap and the Green Felt is in Very Good Condition Also... In Twenty Years this is One of Only Three Movements I've Seen Under 2F00200  Thank you for looking... Any questions please just ask...