This pallet fork complete is for the Waltham World War 2 CDIA aircraft clock.  It will not fit any other aircraft clock.  The CDIA clock has a calendar at the center and is larger than the 22 size standard Waltham aircraft clock.   Material for military items were not generally carried by the watch material supply houses, so they are difficult to obtain.  You are buying from a watchmaker/collector with over 40 years experience repairing antique watches.  We also sell a CD on aircraft clock repair with a lot of material on  aircraft clocks.  Check our other items for sale including more parts for the Waltham CDIA.  I have slowed down and am partially retired, so have a few spare parts I don't need.  So buy with confidence from the watchdoc, check our other items for sale on ebay or check watchdoc.com for other relevant items.