t on July 30 at the expiration of
his nine months' enlistment.[20]

[Illustration: Figure 11.--THE TWO LEVER ESCAPEMENTS USED IN THE
AUBURNDALE ROTARY. Note, in addition to the escapement, the absence of
banking pins and the metal balance jewel in the escapement at the left,
which is from watch No. 176. (Both watches in the author's collection.)]

In the 1864 _Boston directory_ we find him listed as treasurer of the
Bear Valley Coal Co., and the North Mountain Coal Co., with an office at
38 City Exchange. This association with the coal business continued with
changes unimportant to our story through the directories until 1877, in
which year the name is dropped from the _Boston directory_, not to
reappear until the directory of 1880, where he is listed at "Herald
Building, watches and timers." This was apparently the sales office. The
_Newton directory_ of 1877 drops its previous listing of coal after Mr.
Fowle's name and first mentions the Auburndale Watch Co.[21] In 1866
Mr. Fowle established his home, Tanglewood, in Auburndale, a village in
Newton not far from his boyhood home at West Newton and on the bank of
the Charles River about two miles upstream from the Waltham Watch Co. He
served the town of Newton as selectman from 1869 through 1871, was an
alderman in 1877, and mayor in 1878 and 1879.[22]

[Illustration: Figure 12.--A 24-HOUR DIAL for the rotary watch.
(In the author's collection.)]

William Atherton Wales of New York is credited with introducing Mr. Fowle
to the Hopkins watch. No clue has come to light on what connection there
was between Hopkins and Wales, who had been a partner in the large
watch-importing house of Giles, Wales and Co., in New York and later a
large stockholder in the United States Watch Co. of Marion, New Jersey,
which had only ceased operation in 1874. A patent[23] had been issued
to Fayette S. Giles of New York, the leading figure in the United States
Watch Co., for an improvement in stem-winding watches. This had
presumably been available to his company. In this winding mechanism a
crown pinion driven by a clutch on the stem engages with a large ring
gear, having 110 internal teeth, which in turn drives a gear on the
barrel arbor. The author has seen no watch, except the patent
model,[24] containing this device, but the pillar plate of many of the
United States Watch Co. movements were cut out, apparently to receive
this ring gear.

The expense of cutting so many internal teet