Elgin Grade 730, Futur

This is a grade 730 Elgin movement in a "Futur" model wristwatch. The distinguishing feature here is the "mystery dial" where the hour indicator seems to float around the hours.  The hour marker is really fixed on a rotating disc.

Also note the wrap-around crystal - no bezel.

The 730 movement is one of Elgin's best.  It features their balance that can be adjusted by sliding weights rather than timing screws.

Elgin made these mystery dial watches at the end of the 1950s.