Bulova Tank Watch 21j AK7 movement date code 47 Case serial 7531837 14K Gold Filled Case Dimensions: Width w/o Crown: 22.85 mm w/lugs, 21.25 mm wo/lugs Length: 32.85 mm w/lugs, 28.50 mm wo/lugs Depth: 6.15 mm wo/crystal, 9.25 mm w.crystal Lug Width: 16.00 mm Crystal: 21.65L x 17.45W mm, in watch. Domed glass, chip in lower edge Crown: 5.25 mm diameter Engraving on inside case back; BULOVA; 14K Gold Filled; New York Engraving on outside case back: 14K Gold Filled; BULOVA; 7531837 Movement: Bulova AK7 21 Jewel Hand Wind Engraving on Movement: U.S.A.; Bulova Watch Co; 21 Jewels; 7AK, 47 Notes: Sandwich layer of case metal exhibits oxidation; Gold cladding on face of crown wore off; Balance spins freely, but movement will not start
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