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Clocks, Watches/Smiths balance wheel escapement

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Expert: Martin Meyer - 7/14/2009


Question

Smiths movement
I own a Smiths Westminster clock with balance wheel escapement, probably dating to the fifties of last century. See attached picture of the movement.
The clock loose about 1 minute per day, even after I turned the regulation index all to the right (Fast).
What I can do to accelerate the clock ?

Answer
Hi Paolo,

If the clock still loses when adjusted all the way toward the "fast" position, then there is some other problem with the clock. It may need lubrication or, more likely, may need to be disassembled, overhauled and have worn bearings replaced. Additionally, the mainsprings may be worn out and need to be replaced. There is no adjustment that will substitute for this. Floating balance movements must be in almost perfect condition to keep time accurately, making the need for an overhaul even more likely. Also note that the floating balance itself may be damaged, and this can be very difficult to repair.
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Martin Meyer

Expertise

Can answer repair and service questions for most types of clocks, antique and modern, mechanical and battery. NO watches, appraisals, identification, history, dating, or questions about cuckoo clocks. Website for Modern and Antique Clock Repair: Clockmasteronline.com

Experience

24 Years as owner and repairman of clock repair business, 28 years in the field. Factory Independent Service Center for Howard Miller, Ridgeway and (formerly) Sligh Clocks. Specializing in Fine Antique Longcase (grandfather) clocks. Clock repair Website: (Please remove "Not" from the address - this is a spam protection): www.NotClockmasteronline.com

Organizations
AWCI (American Watchmakers and Clockmakers Institute) and NAWCC (National Association of Watch and Clock Collectors)

Publications
Am also an Expert in the "AllExperts-Antiques-Antique Clocks" Category.

Education/Credentials
Trained by a former Rolex Asia watchmaker, and by a Master Watchmaker/Clockmaker.

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