This Schatz standard-sized 400 day clock with diamond-shaped dial is dated 7 53 (July 1953) on the back of the movement. This clock has a glass dome with a hole in the top that fits over the brass handle. The base has brass leveling discs. The movement has two jewels (bearings), an uncommon feature in Schatz standard 400 day clocks (but all the Schatz miniature clocks have two jewels). This movement also has an extra mainspring on gear T4 (the 4th wheel in the gear train). It is visible in the left photo below. This is a very weak mainspring, and was used on a relatively small number of clocks. They found that it gave no improvement in performance.
This beautiful Schatz 400 day clock with diamond-shaped dial is dated 6 53 (June 1953) on the movement. I overhauled the movement; and polished and lacquered the base, pillars, platform, finials and pendulum.
I installed a new suspension unit 6789. The movement is classified as Horolovar back plate no. 1281.
I just repaired this clock. I polished 6 pivots and replaced the suspension spring. Here are the gears and anchor before the back plate was put on, and the complete clock:
Here is a video of the escapement action:
Here is the entire clock operating (with background chime accompaniment:
Job 4780
Back plate: 1404
Suspension unit: 11A
Suspension spring: 0.0036 inches
