Talk:John Arnold (watchmaker)

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Revolution in Precision Timekeeping

The reference to "thirteen months" from February one year to July the next is clearly wrong, but I don't know what is correct. Dawright12 (talk) 12:29, 19 April 2011 (UTC)[reply]

Re: "At the time, the only oil available was vegetable in origin and degraded fairly quickly compared to modern lubricants." Surely whale oil was then in use, wasn't it? Dawright12 (talk) 12:40, 19 April 2011 (UTC)[reply]