
Restoration of Bulle 130288
A four-glass Bulle, restored and written up step by step.
See the restoration · photographs and notesBulle & Eureka Parts & Restorations
A record of Bulle and Eureka battery clock restorations, with the notes, photographs and guides that go with them.



September 2026
I carried out Bulle and Eureka restorations and repairs until 2015, when I had to stop. Since then the site has stood still, and having first been set up in 2005 it was getting rather long in the tooth. In 2026 I used Anthropic’s AI assistant, Claude, to redesign it and add new content.
The restoration notes, photographs and guides are all my own work and are unchanged. What’s new is a page for every clock in the gallery, a “Find a clock” search, and a set of articles in the Articles & techniques section. Claude compiled the articles by drawing together themes from my restoration notes and looking for supporting information online. Where outside sources have been used, they are credited at the end of each article.
I’m sure there will be some mistakes. If you spot one, or can add to anything here, please let me know at petersmith@horologix.com so that I can correct it.
Please note that I no longer carry out restorations or repairs. Parts are available from Carlton Clocks (details below).

A four-glass Bulle, restored and written up step by step.
See the restoration · photographs and notes
The last and most difficult restoration project I have ever undertaken on a Eureka clock. What a mess.
See the restoration · photographs and notes
Les Annales magazine, December 1923.

Catalogue from “Rodanet – Paris”. Includes many of the early Bulle models.

Measuring the strength of Bulle magnets with a compass and a scale, with readings from the restorations.

Testing, repairing and rewinding the pendulum coil: resistances, the 6,500-turn winding and the early resistors.
Parts
All parts are now available from Carlton Clocks.
Contact
Peter Smith