Posted 5 years ago
This Schatz 1000 day clock is dated 3 57 (March 1957) on the back of the movement.
Schatz introduced their 1000 day clock in 1954. There are two case styles: round base with glass or plastic dome, and rectangular base with brass cover having glass or plastic panels. A 1000 day clock can be identified by the “54” in a circle on the back of the movement.
Why 1000 Day Clocks Run So Long
The Schatz 1000 day clock is based on Schatz’s miniature 400 day clock movement. A larger mainspring, with about 2.5 times the amount of energy storage, is used, but the gears (except for the barrel and second wheel) and escapement (except that the anchor has a longer arbor) are the same. The pendulum makes 10 rotations per minute.