Back, Front, Dial, Movement, Case mark, Cuvette mark, Movement engraving, Angle view of movement, 2nd angle view of movement, Movement in case, Regulator, Signature under dial, Under dial view, Setting mechanism set position, Setting mechanism wind position, Patent cover, Patent text, Fig 1 closeup, Fig 2 closeup

Richard Oliver of Brooklyn New York patented this interesting regulator that is similar in operation to the Elson compound regulator. The pinion drives the sector gear to make the adjustment and the sector is coupled to the regulator arm with a slot and pin. This multiplies the sensitivity of the regulator.

Oliver claimed that this mechanism also made the regulator temperature insensitive. In a standard micrometric (whiplash) regulator, the expansion of the micrometer screw with heat moves the regulator arm. Of course, none of the rack type regulators have the temperature problem.

The watch was made by Agassiz and is signed under the dial. The dial and movement are  signed Cleveland Watch Co. I don't know if there is any connection with the Ball Cleveland Watch Co.

The watch has 20 jewels in raised chatons and the serial number is 29891. It is 14 size, but rather thick for a standard 14 size. However, it is about the same proportions as a Waltham 14 size of the mid 1880's.

 It is housed in a very heavy Brooklyn Watch Case Co. 14K case. The case is marked on the inside of the cuvette with a large old English "E" that presumably is some kind of quality mark. The  front cover opens by depressing the crown, there is an additional bezel protecting the dial edge. However, there is no provision for the inner bezel to hold a crystal and I think the case was never a hunting case.