The Hands On 400 Day Clock Repair Guide, written by Chris Wadge.

Copyright 1994, Softcover, 55 pages.

This book was written as an easy to follow guide to the repair and set up of mechanical 400 day anniversary clocks, and is geared toward the owners of these clocks. It refers to the Horolovar 400-Day Clock Repair Guide in several places. The book is divided into 7 chapters:

Movement repair

Troubleshooting

Choosing/setting the suspension spring

Putting the clock in beat

Setting the pallets

Mainsprings, length and strength

      Suspension length and timing