Question about Geneve Watches
I have a Longines pre 1930 that runs fast. It gains about 15 minutes in 2 hours. What can cause this? How do I fix it? Thank you, tom
Such a fast gaining usually is caused by dirty or magnetized hairspring, resulting in uneven coil amplitude (some of the coil rows are sticking together or touching each other). This causes the watch to run unbelievably fast.
To get the watch properly fixed you need to give to the watchmaker.
Alternetively; you can fix it yourself, but it will not last long.
For this you will need:
Dust blower (resin ball with nozzle),
Lighter fluid (ZIPPO),
Dropper (like one in eyedrops package).
Do as follows:
Open watch caseback,
Check for the fastest moving part in watch movement and you will see the hairspring fitted on it (pulsing outwards and inwards very fast).
Fill the VERY CLEAN dropper with lighter fluid.
Put ONE drop of lighter fluid on hairspring (DO NOT TOUCH IT),
Wait for a 10 seconds,
Dry out the lighter fluid with dust blower by vigorously squeezing it and pointing the nozzle on to hairspring from approx. 2-3 inches away.
Lay the watch on the table (dial down) and cover it with a clean, dustless cup. Leave for 15 minutes.
Fit the caseback on and enjoy your watch again.
Do not forget to rate, please.
Posted on Jan 27, 2009
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Posted on Jan 02, 2017
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