Thomas Mercer 2 day Marine chronometer with 24 hour dial

Thomas Mercer 2 day Marine chronometer with 24 hour dial




Country of manufacture

UK and Ireland

Category: Chronometers & Deck Watches


An excellent 2 day ( 56 hour ) marine chronometer by Thomas Mercer, circa 1960, numbered 27863 with rare key-hole winding to the top ( as opposed to the usual winding through the bottom of the brass bowl ) and a 24 hour silvered dial.

The movement and bowl with single fusee chain movement, Earnshaw escapement and  spring detent to cut bi-metallic balance with heat compensation weights.

Excellent time keeper. The case 19 cm x 19 cm x 16 cm.


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GB Scientific Inspirations

Scientific Inspirations

I live in Lancashire (U.K.) and have been a dealer and collector of scientific and nautical instruments for a number of years. My stock has included some fine items from museums and colleges, which were surplus to their requirements. I occasionally purchase some interesting items from abroad, having established some reliable sources.

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