3031. Touchon & Co, Geneva. A fine and rare 18K gold keyless wind open face repeating split second chronograph pocket watch Touchon & Co, Geneva. 18K (750) yellow gold open-faced pocket chronograph with split-seconds pendant winding. Date: Circa 1890 Movement: Swiss lever, cut and compensated bi-metallic balance, swan neck regulation, wolfs tooth winding, No.7717 Dial: White enamel, black Arabic numeral hour markers, black outer 1/5th second divisions, subsidiary dials at 12 and 6 for seconds and 30 minute recording, blued steel spade hands, centre split second chronograph hands Case: Polished round, repeat slide at 9, chronograph buttons at 11 and to crown, No.7737 Signed: Dial signed Touchon & Co, movement signed W.K Vanderslice, San Francisco Size: 56mm Weight: 83,16g