A chrome open-face watch, Hebdomas Patent Circa 1910 4.2 cm dial diameter, 4.7 cm case diameter, 6 cm high. A chrome open-face watch, Hebdomas Patent. Circa 1910. Gents open face 8-day watch in a plain chrome case, metal winding crown and round bow. White enamel dial, eccentric chapter ring in that 12 o'clock is in the customary 9 o'clock. position, black Roman hour numerals, black hands. The words "Hebdomas Patent" in black. in an arc above the words "8 days" in red, with the words "Swiss Made" under that. Decorated ring outside chapter ring and decoration extending from that between the hour. numerals. Flowers set into the dial where 9 and 3 would normally be. The bottom part of the. dial cut away to expose a chased, narrow, bridge balance cock and the escape wheel, so that. part of the movement can be seen through the dial. Stem wind, lever escapement. The spring barrel is as large as the circumference of the watch. itself. Hands are set by pressing the knob on the side of the watch near the winding stem. Provenance: Purchased from Sel Smith, watchmaker, Toowoomba prior to 1972. Dimensions: 4.2 cm dial diameter, 4.7 cm case diameter, 6 cm high