Bonhams 1793 Lot soldUSD 4 000 - 6 000EstimateUSD 4 000 - 6 000 See all lots - Illinois. A fine gold filled open face watch - Illinois. A fine gold filled open face watch Bonhams, Masterpieces of American Watch Making: Rare Watches from a Private Collection, New York, June 12th, 2014 | New York, 12 June Lot number 1010 Location Watch type Pocket watch Description Diamond, Ruby & Sapphire, No. 247494123-jewel 16-size grade 710 bridge pattern movement adjusted to 6 positions, gold train, jewels in gold settings and gold capped bridges, double roller escapement, bimetallic balance, diamond end stone, blued overcoiled spring, micrometer regulator, pendant set, signed double sunk white enamel dial, arabic chapters, subsidiary seconds, blued hands, engraved 10K gold Keystone screw back case51mm