Anniversary / Rotary Clock Movement – Battery Powered Pendulum Drive

This anniversary / rotary clock movement is a pendulum-only, battery-powered drive unit designed for use in modern anniversary (400-day style) clocks. It is used exclusively to make the four-ball pendulum rotate back and forth, creating the classic visual motion found in newer anniversary clocks.

This unit does not keep time and is not a timekeeping movement. It is intended only to drive the rotating pendulum assembly. The movement operates on a single AA battery (not included) and includes a four-ball pendulum assembly as shown.

The shaft is center-mounted, making it compatible with many modern anniversary clock designs that use a separate timekeeping movement or quartz time display.

Specifications

-Movement Type: Anniversary / rotary pendulum drive

-Function: Pendulum motion only (non-timekeeping)

-Power: 1 × AA battery (not included)

-Pendulum Style: 4-ball rotating pendulum (included)

-Shaft Position: Center

-Warranty: 1 year manufacturer’s warranty

Movement Dimensions

-Movement Size: 2 9/32" × 2 9/32" × 11/16" thick

-Overall Shaft Length: Approx. 11/16"

-Threaded Post: Diameter: Approx. 1/4", Threaded Length: Approx. 5/16"

Pendulum Dimensions

-4-Ball Pendulum Size: 2 5/16" tall × 1 11/16" wide

-Assembled Height: Approx. 3 3/8"

Important Notes

-This movement does NOT keep time

-Designed ONLY to rotate the pendulum

-Intended for modern anniversary clocks, not traditional mechanical 400-day movements