Dating elgin wrist watch
A very slim and pretty watch despite showing signs of having led a quite active life."CYMAFLEX" was a shock absorber system developed by CYMA and first used in their Navy Star models I believe.: In the 1940's the British Ministry of Defence produced a standard specification for watches to be issued to the armed forces.As the dials rotate clockwise, the time can then be read off against an index mark printed on the viewing window - an interesting addition to any collection I think.The watch is powered by a mechanical, 21 jewel automatic movement.: OK, so whilst this isn't a true JLC-type Reverso, it's a double-sided watch that can be worn one side up or the other.The watch was "standard issue" to the Basel City Fire Department.
Bronze watches are produced by the likes of Anonimo, Helson, Kazimon, Magrette, Olivier and Zenton not to mention Panerai, although the latter can hardly be called a micro producer!
Originally water-resistant to a depth of 200 metres, these latest models can withstand the pressure at depths of up to 1500 metres and feature an escape valve which allows helium (built up after long stays at depth) to be evacuated from the watch case which would otherwise explode when returning to the surface.: The origins of Bulova can be traced back to 1875 when Joseph Bulova (a 23 year old immigrant from Bohemia) opened a small jewellery store on Maiden Lane in New York City, USA. Around 1929, the company was sold once more to a group of new shareholders including the Swiss-American financier, Roland Gsell.
By 1912, Bulova had begun manufacturing movement components in Switzerland. Just two years later, Bulova would begin development of the Accutron (see below). Buren appears to have had a rather colourful history: Founded in Switzerland in 1873, the company was bought in 1898 by H. In 1966, the company changed hands again, and was this time acquired by the Hamilton Watch Company (USA) with Hamilton transferring a good deal its production to Buren's Swiss premises.
At least 7 different colours appear to have been available, including black, red, blue, green, white and silver/grey, as well as the yellow one pictured here.
The concept and the manufacturing technique was the precursor to that developed by Swatch some 10 years later.It comes in a lovely travel case, has both leather and rubber straps and a screwdriver and spares for the screwed bars.