Front, Dial, Back, Case mark, Cuvette, Cuvette mark, Movement, Bezel damage

This Riverside grade open face chronograph is the companion piece to the hunting case example to show the differing arrangement between the two styles. The serial number is 3,126,706. (3,126,501 to 3,127,100) It is one of several runs of chronographs between 3,126,001 and 3,127,700. The example run was produced between August and November 1887.

The fact that this watch is in the same run as the chronograph with register (3,125,714) illustrates that the movements were likely not produced in any particular schedule. Of course until some additional examples are examined it is possible that batches of 10 were made in each complication.