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Specializing In The Cleaning, Repair And Restoration of First Edition Accutron 214 Caliber Tuning Fork Timepieces.
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Accutron Repair Schedule Update
All of my repairs are currently on schedule.
I work on first edition 214's only. The 214 is set from the rear of the case by lifting a spring loaded "C" shaped lever. Also on the rear of the case is a slotted hatch cover which unscrews to access the battery. If your Accutron has these features it is a 214. Click on the thumbnail image (left) to see a larger photo.
To schedule a 214 repair or restoration, please e-mail your shipping address and if possible, a description of the desired services. When I receive your information I will offer you my next available opening. If you decide to go ahead with the work, please reply a.s.a.p. so that I can confirm the appointment. Please do not send your 214 until your appointment date is confirmed.
Click the following link for a price list of parts and services: AccutronWorksheet.pdf
One year guarantee on repairs (parts and labor)
Two year guarantee on full restorations (parts and labor)
Is your running way too fast? See the information at: http://www.accutron214.com/AccutronBattery.htm
The electronic circuit in your 214 (commonly referred to as the coil) was designed to run on 1.35 volt mercury batteries which are no longer sold in the USA. Currently available silver oxide batteries produce 1.55 volts. Perfect adjustment of the index mechanism was not as critical with the lower voltage of mercury batteries as it is with silver oxide batteries. The higher voltage (+0.2V) can cause some movements to run too fast due to double indexing. If this happens to your 214 it is usually because the adjustment of your Accutron was borderline in the first instance and you will have to have the movement professionally adjusted.
A readily available 1.55V silver oxide battery usually works well and most 214's can be phased (adjusted) to run properly without any difficulty but there are some movements which can only be described as over-active. The adjustment of an over-active movement with a 1.5V battery is so tenuous that any external force will cause the movement to speed up. This explains why some watches run great on the dresser but too fast when worn while others will run well for a while until a hard bump causes them to slip out of adjustment.
The bottom of each 214 tuning fork tine was notched at the factory to set the frequency (click photo). A relative few have tuning forks that were cut to the thinner end of their tolerances. This was OK when the magnets were energized by 1.3 volts but at 1.5 volts these forks are over-active. This causes them to index two teeth instead of one either periodically or with every stroke. Previously the only way to correct the problem was to replace the tuning fork with one that has thicker tines but that is not a reliable solution to the problem. Experience has shown that quite often, the watch will run well for months after the fork is swapped, but the movement is still susceptible to speeding up after suffering a severe shock.
Fortunately there is a way to permanently solve the problem. A diode which lowers battery voltage in the circuit by 0.2 volts can be installed in the coil. This is really the best possible solution to the problem. The watch will perform as it did when new, battery issues will be resolved, and the life of the coil will be extended. Whether actually needed or not, this inexpensive modification is highly recommended. It is not noticeable and it is reversible.
© 2002 by Martin Marcus. All rights reserved. These pages may not be copied without written consent.