Two Hamilton Model 23 Navigational Chronograph Watches and a Case and Dial

Two Hamilton Model 23 Navigational Chronograph Watches and a Case and Dial, serial no. P8421, P27094, c. 1941, black arabic numeral dials with thirty-minute and seconds registers, and marked "Hamilton," chronograph operated from stem, 19-jewel stem-wind movement in a base metal case, one in original mahogany deck case; case and dial has soldered thread screw on back, engraved "Navigation Stopwatch."