Larger size all-English centre-seconds wristwatch in best quality 'Aquatite' case.
Heavy Dennison 2-piece 9ct gold screw back case hallmarked Birmingham 1960. Smiths Cal: 0104, 19 jewel, shockproof movement, as developed by Richard Good and others for Smiths in 1957/58. Double-roller detached lever escapement with steel escape, the monometallic balance with ‘chronospan’ balance-spring. Two-tone silvered dial with a mix of faceted gilt batons and numerals, original gilt hands, the centre-seconds with the usual red tip. 33.5 mm diameter, not including button or lugs. Together with the original blue clamshell box and outer cardboard box bearing the model description: Imperial 507.
This watch is close to the model I.507 shown in Smiths 1960 catalogue, page 28, and which is marked on the box, but is housed in Smiths best quality gold case as used on Smiths I.506 model of the same year. This is, however, a mix I have seen before on these Bristol Siddeley presentation watches. For more information about Smiths English wristwatches see the short note in my website Glossary, and my illustrated article on Smiths ‘English Wristwatches’ in the April 2003 issue of Antique Collecting.
NB: Despite this model being sold as waterproof, all Smiths wristwatches of this date are best kept well away from damp conditions. That said, Dennison's Aquatite case is one of the few Smiths models that I can recommend for anyone considering 'everyday' and general wear.
A lovely example in fine original condition, with just some signs of age showing on dial and case, the rear with 1961 presentation inscription to R Robinson from BRISTOL SIDDELEY. This important English engineering firm was formed from the merger of Bristol Aero-Engines and Armstrong Siddeley Motors Ltd in 1959. On new best quality light brown Hirsch leather strap. Serviced and guaranteed.
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