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Clocks, Watches/Clock runs slow-How to adjust

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Expert: Martin Meyer - 6/25/2009


Question
I have 31 day Waltham chime mantel clock, it's been a great clock for the last 25 years, starting to run a little slow. Can you adjust this by using the nut on the bottom of the swinging arm, and if so up or down??  Thanks

Answer
Hi Cal,

You turn the regulating nut to the right (raising the pendulum bob) to make the clock go faster, and vice versa. Start with small increments such as 1/2 turn for each minute per day that the clock is off by.

However, you should consider the cause of the clock's running slow after keeping time properly for years. The two most likely causes would be that either the clock needs to be lubricated, or that the bearings in the movement are worn. A professional clock repairer can both lubricate the movement and check for wear.  http://www.clockmasteronline.com

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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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