The TUDOR Oyster Prince Submariner shown here, reference 7928, with pointed crown guards, was produced in 1964. On its screw-down case back it bears the engravings of supplies belonging to the American navy (US Navy or USN) as well as a date. The inscriptions were displayed on three lines: U.S.N., ST 2/015, OCT.68.
This example shows a dial without a circle around the minute graduation, and with white inscriptions. Its case does not show the characteristic marks of having been mounted on a metal bracelet, suggesting that it was mounted only on flexible bracelets – as was often the situation of military TUDOR Submariners.
The bracelet shown here was not produced by TUDOR.