Re: Lubricating Smiths Sectric Clock Type 1
There are all sorts of urban myths surrounding proprietary oil formulations. The fact is that all lubricating oils are volatile to some extent and will evaporate, which is why periodic relubrication is necessary. 3-in-1 does have penetrating qualities and isn't ideal for clocks, but there are unlikely to be problems with a Smiths Sectric mechanism.
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