Repair and Restore Your 400-Day Clock

Very useful book. I own eight 400 day clocks. I bought all of them in non-working condition. With this book and The Horolovar 400-Day Clock Repair Guide (I bought from Amazon) they all how work. Some of the clocks where sold as is for parts only. I have fixed all eight and they keep good time. If you want to repair 400 day clocks (aka Anniversary clock) These books are a must have. I took my first clock to a repair shop and was told it could not be repaired. He was wrong.

If you are looking for a single book that tells you how to repair 400 day clocks, this is not the one. In fact, the author clearly states on page 8, "It is essential for anyone remotely interested in 400-day clock repair to obtain a copy of the 400-day Clock Repair Guide by Charles Terwilliger." The author repeatedly tells the reader to refer to the Terwiliger book for many repair actions, especially for any work involving replacing the suspension spring or making repairs related to the spring. This book does not even allow one to choose the right size spring for a clock, because that information is missing, so reference to Terwilliger's book is necessary. I would suggest that anyone looking for a complete book purchase that one instead.If, however,one wants a supplement to the Terwilliger book, this one is suited for that purpose. The author clearly has experience with repairing these clocks and offers a number of clear hints and tips.

This is a very good book for learning all the basics on how to service a 400 day clock, but it isn't clock specific like other books are. Make sure that you buy a book that covers your brand of clock for more detailed information.Overall this is a great reference book to go back to if you want to refresh your memory on clock cleaning and operating principles. If you can buy a used book then do so and save some money.

You will still need Charles Terwilliger's"The Horolovar 400-Day Clock Repair Guide" as it is referenced multiple times in the book.

I inherited one of these clocks, and after searching on the internet, could not find an easy repair.This book made it easy, the clock is now going nicely, I needed only to look at a couple of chapters, but it is so thorough, that I'm sure if it breaks down again I have the means to make it good. The book does seems to be reasonably stand alone, although it suggests the well known comprehensive manual commonly quoted on the internet should also be bought, in my case this was not necessary.

Item as described.

The writer did very good job on short but easy to understand and praticable.This book is provides full detail explaination of all the parts of 400 day clock including unviel the secret of problems and tell you how to do the best practice for repair and restore this amazing antique clock.As a 400 day clock lover & collector I love this book so much.Thanks Joseph,Apichart SajchwongMay 2010, Bangkok, Thailand

Very useful. Lots of diagrams and explanations. If you work on torsion clocks this book is for you.

The best explanation of the motion train that I've ever read. The chapter on mainspring servicing had helpful hints to flesh out my own technique without the need of a winder. Thanks..

The book is well written & covers all aspects of these clocks. It along with Terwilliger's Repair Guide are must have items if you want to work with these clocks.

I've been 'messing with clocks' for a few months now and acquired a couple of 400 day 'anniversary' clocks which didn't run. This book and its reviews looked like it could be helpful without breaking the bank, so it was purchased via Amazon. Needless to say said clocks are now click, clicking away keeping excellent time. These are the first two clocks that I've stripped to the bare bones. This book is so helpful and easy to understand. I now have on order the Holorovar 400 Day Clock Repair Guide to gain more detail of these delightful clocks.

Bought this for my husband who is into mending clocks. He found it fascinating. I can't comment other than to say that he spends hours pouring over it ... and still hasn't completely managed to fully restore his 400 day clock. It's complicated apparently.

Nice introduction to these clocks, plenty of info within, covers the basics which is great. I will however be getting to horolover book aswell