Watches of Knightsbridge, London, 21 March 2015
Sold for £4,620
Many QP readers will be familiar with watches which incorporate mechanical depth gauges, such as IWC’s Deep One (which didn’t work that well), its more effective successor, the Deep Two, and Jaeger-LeCoultre’s Master Compressor Diving Pro-Geographic. But, back in the 1960s, the lesser-known Favre-Leuba dial name was at the forefront of dive watch technology with its Bathy 50 model, with a depth gauge which was potentially capable of operating down to 50 metres. Like other depth gauge watches, it worked by allowing water to enter the case and press against a membrane which both protected the mechanism and acted against a pointer to provide a rough reading.
This example looked nice and original, was pleasantly patinated and still had the same bracelet on which it probably left the factory almost 50 years ago. It seemed like a decent buy at the price – although we doubt it would be wise to put it to the test in the briny.