ULYSSE NARDIN antique Royal Navy navigation watch pocket watch WW II, ca. 1943. Case silver 925, screw back case, signed with Ulysee Nardin Locle, inscription on outside "H.S.^2". Serial number 123923 on dial, movement, type plate inside and outside of the wooden box. Enamel dial with roman numerals. Handwound movement with bridges, indirect central seconds and eccentric fine adjustment. Original wooden box enclosed, with fixed brass screw-case for securely storing the watch. 56mm diameter without crown.