A J. F. Bautte open face enamel key wind watch, gilt cylinder movement with three-arm balance, engine turned offset gold dial with Roman numerals, steel hands. The champleve case decorated in a foliate design with matching watch chain and key. The dust cover engraved 'J. F. Bautte, Geneve, Arguelles, no 48843'. Circa 1830. Diameter: 35 mm. Provenance: The collection of Dr Trevor Hyde, Sydney. Other Notes: Jean-Francois Bautte was an eminent watch maker in Geneva and Paris who specialised in making very thin watches. This example is just under 6 mm thick.