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 Kundo standard size 400 day clock was probably made in the 1960s. It is unusual in having a heavy, cast brass base (most 400 day clock bases are thin brass over a wood, metal or Bakelite core). The fancy dial is in the French style, with imitation enamel numerals applied to the dial). The arch (the piece with the decorative finials above the dial) is made of plastic!
Here is a nice example of the Schatz “London Coach” 400 day clock. This one is dated 3 56 (March 1956) on the back of the movement.
I disassembled and cleaned the movement and polished the pivots. I replaced the suspension spring with a new Horolovar 0.0024 inch thick spring (note that I used a 0.0024, not a 0.0023, as discussed in “Suspension Springs for Schatz and Kundo Miniature 400 Day Clocks”
I polished and lacquered the brass case parts except for the back panel.
Here’s a Hermle 400 day clock form the 1950s that I repaired recently. Hermle 400 day clocks are not very common. I get many Schatz and Kundo 400 days, but see a Hermle only every couple of years.
The dial has a 3 15/16 inch minute track, and the minute hand is 2 inches long from center to tip. The original instructions are with the clock.
The pivots were rough on this clock, and I think they left the factory this way. I polished them all.
Repair job 5589. Horolovar back plate number 1103. Suspension unit 25A, with fork raised to prevent fluttering (5.2 mm space bvetween upper block and fork). 0.0033 inch Horolovar suspension spring.
This is a Kundo standard 400 day clock from about 1950 with wide back plate. The name “Kundo” on the dial is written in black instead of red. This may be an early version of the logo (all the ones I remember seeing before have “Kundo” in red).
Repair job 5613. Horolovar back plate 1371. Suspension unit 1. 0.0032 inch Horolovar suspension spring.
This Kundo standard-sized 400 day clock has a nickel plated finish instead of the common plain brass. It has a wide-plate movement so I believe it was made on the early 1950s. The back plate has no name, just the Kundo logo in a circle. It uses a 0.0032 inch thick suspension spring. I didn’t do a full repair on this clock – just replaced the suspension spring. The gears are not nickel plated.
This is the most unusal Schatz 400 day clock I’ve seen – it has a copper plated finish. It is the only one I’ve see in all my years of collecting and repairing clocks. When the clock came in for repair, the finish on the base had been damaged by attempted polishing. The movement and bezel still looked good!
Pendulum parts: hook, 8 half-ball covers, 4 arms, regulator assembly, decorative washer and center assembly;
Case parts: 2 pillars, 4 pillar ends, platform, base cup, base cup screw, base, 3 finials.
The movement plates, suspension guard, guard washers, ratchet, ratchet cock, ratchet cock washer, bezel, saddle, saddle washer, saddle bridge, plate washers are copper plated. The hand nut, gear train and motion work are not copper plated.
This clock was made around 1940 or 1950. The dial has no maker’s name, and the pack plate says Jahresuhrenfabrik 49 Germany in a circle.
The parts as received from being copper plated by Ken’s Clock Clinic
Nickel, copper and brass 400 day clocks
I didn’t clean the movment plates in cleaning fluid for fear of damaging the lacquer or the copper plating. I pegged and smooth broached the pivot holes to clean them. The movment is identified in the Horolovar 400 day clock book as plate no. 1278.
