J W BENSON LONDON GENTS SMITHS 16 JEWEL DENNISON AQUATITE CASED WRISTWATCH MADE BY SMITHS IN ENGLAND LIZARD balance with screws and beryllium

balance with screws and beryllium hairspring in this almost mint movement which is c series number 244508

This watch has no recent service history that we know of and maybe just one of the usual watch makers records scratched into the back

but distinctively a Smiths type

The case back is marked waterproof anti-magnetic

concealed winding wheels

J W BENSON LONDON GENTS SMITHS 16 JEWEL DENNISON AQUATITE CASED WRISTWATCH MADE BY SMITHS IN ENGLAND LIZARD balance with screws and berylliumJ W BENSON LONDON SMITHS 16 JEWEL DENNISON AQUATITE CASED WRISTWATCH MADE BY SMITHS IN ENGLAND. An unusual variety of the Everest waterproofed cased models retailed by J W Benson with chromed top and steel screw in back. Case diameter approx 33. 1mm. The movement is upgraded from the standard Smiths product by an additional centre jewel. Batch numbered 43. Smiths Deluxe grade movement otherwise with a better quality balance assembly, as often found in