Japanese house clock with alarm

From Object Wiki

Japanese house clock with alarm
Manufacturer	(unknown)
Production years	19th century
Production location	Japan

A Japanese house clock is a mechanical clock made to tell traditional Japanese time.

[edit] How it works

This clock, which probably dates from the early nineteenth century, is controlled by a balance wheel and spring, and the balance wheel is provided with adjustable weights for regulating its period of oscillation. The clock strikes on the usual Japanese system and is also fitted with an alarm. The dial rotates behind a fixed pointer and the hour-marks are adjustable in a sliding ring in the dial to allow for the variation in the length of the hours at different seasons. Two small square apertures below the dial show characters, which, when combined indicate the day of the sexagenary period, a system of reckoning in cycles of 60 which was introduced into Japan from China in AD 602.

[edit] Memories

Do you remember stories about clocks? Add your memories.

[edit] In the Science Museum's Records

Inv. No: 1937-891