What is a 400 day anniversary clock?

A 400 day clock, also known as an anniversary clock, is a clock that uses a torsion pendulum mechanism to keep the time. A precisely weighted wheel turns around the base of the clock, like a pendulum that turns, rather than swings. This clock is called a 400 day anniversary clock, because it is said to go 400 days without winding, or can simply be wound on an anniversary, once a year. Browse an array of 400 day anniversary clocks from top sellers on 1stDibs.

31 Day Clock

William J Hat

Antique Iron Bed Side Tables

Rolex 3 Atm

African Figural Side Table

Alfred Russell

1930 World Cup Poster

Absinthe Poster

48mm Rolex

Sort By

Unusual Antique Victorian 31 Day Regulator Wall Clock

Located in Suffolk, GB

Unusual antique Victorian 31 day regulator wall clock having a circular glazed door with brass

Antique 19th Century English Victorian Wall Clocks

Materials

Brass

Unusual Antique Victorian 31 Day Regulator Wall Clock

H 28.35 in W 16.15 in L 28.35 in

Get Updated with New Arrivals

Save "31 Day Clock", and we’ll notify you when there are new listings in this category.

Questions About 31 Day Clock

What is a 400 day anniversary clock?
1 Answer
1stDibs ExpertApril 5, 2022
A 400 day clock, also known as an anniversary clock, is a clock that uses a torsion pendulum mechanism to keep the time. A precisely weighted wheel turns around the base of the clock, like a pendulum that turns, rather than swings. This clock is called a 400 day anniversary clock, because it is said to go 400 days without winding, or can simply be wound on an anniversary, once a year. Browse an array of 400 day anniversary clocks from top sellers on 1stDibs.