Jewellery, Objects of Vertu, Silver and Watches

Swiss. A gunmetal open-faced jump hour keyless watch with digital dial, circa 1900.
Movement: lever escapement.
Dial: white enamel, silvered recessed cartouche, Arabic numbers, subsidiary seconds.
Case: gunmetal, gunmetal cuvette, no. 48011.
Signed: unsigned.
Dimensions: diameter 50.5mm. £200-£300