the example you see here features the automatic caliber 916, which has a higher frequency at 28,000 A/h. This watch is in very good condition with a fully functioning alarm. The lume is still intact, however the handset may have been re-lumed at some point because the lume glows slightly more than the that on the dial.

Jaeger le coultre Memovox speedbeat
reference E875
year: early 70s
Jumbo 37mm case size 12mm thickness
caliber 916
Original crowns 
Mint condition dial 
Keeps time and alarm works perfectly 
Original JLC alligator black strap 
Original JLC buckle