Movement Serial No.:
Case Serial No.:
Accuquartz 2240 with SS Bezel & SS Back . Accutron with 10kGF Bezel & SS Back Accutron with 10kGF Bezel & SS Back
There are 3 variations of the 224.
2240: Time only, with sweep seconds.
2241: Time, Sweep secs., Day display.
2242: Time, Sweep Secs., Day and Date display.