Watches of Knightsbridge, London, 20 June 2015
Sold for £5,840
Heuer driving watches are well known for their collectability – but it now seems that some of the brand’s more arcane sports models are also on the rise, as evinced by the sale of this Solunagraph for almost double its high estimate. Made for the Vermont-based fly-fishing and hunting supplier Orvis (and almost identical to a similar Seafarer model made for U.S. clothier Abercrombie & Fitch), this 1968 chronograph features a Valjoux Calibre 721 hand-wound movement modified to provide an indication of tide times by keeping track of lunar time.
The left push piece advances the tidal indicator (at the 9 o’clock position) so that it can be set to show the correct high and low tide times in a specific location. Once the chronograph is set running, the subdial can be used in conjunction with its corresponding one at the 3 o’clock position to indicate the amount of time elapsed in the 12 hr 25 minute period between low and high tides. Not only useful for sailors and fishermen, but also a great looking watch.