NEW  ESCAPEMENT 11 JEWEL

34. mm long 21 mm wide 14.69 mm  high top with bottom 9.12 mm top only

1.341 in.  long .826 in . wide .584 in. high top with bottom .360 in. top only

Fits exactly in a Seth Thomas movement marked # A207 - 000, Hermle # 132 - 071SG, Boston  132-07.

Longer screws may be needed to mount 

Balance frequency = 18,000 beats per hour

Escape wheel count - 15 teeth

Escape pinion count = 8 leaves

Escape pinion module = 0.20

Comparable Hermle escapement  in Timesavers catalog page 25 #10852 lists for $175

Thanks for looking