Stainless late 1950s/early 1960s manual wind Elgin Shockmaster 'Flying Saucer'.
All USA made...movement, case, dial, hands, crown, crystal, and bracelet. C/O about 10 years back, not worn very much since then and still within 5 to 7 seconds a day.
Stainless USA made 'Don Juan' clamp-on type bracelet.
The watch is held on the bracelet by spring loaded arms that clamp over the spring bars and are held to the bracelet by rivets that slide in slots to allow for different watch sizes. The bracelets come in small/medium/large sizes and you bend them to adjust for a comfortable fit. The spring bar clamps come in assorted widths and can be filed down to the exact size needed. You see these bracelets on watches worn in hot, damp environments...Vietnam era military watches for example. They are also used where the watch can be quickly removed from the wrist without clasp or buckle hassles...medivac situations etc.
...or just because they are coool.
Don Juan Watch Band Cuff | WatchUSeek Watch Forums