Unsigned pocket watch, dead independent seconds date, circa 1890

Antiquorum catalogue description

18K yellow gold, open-face, keyless-winding, round-shaped, pocket watch, with five horological complications:· Dead independent seconds (exterior graduation with central hand; activated by the rectangular push-piece located on the case-band, at 10:30)· Two barrels with differential gears and bidirectional-winding inspired by Sylvain Mairet’s (1805-1890) works (1850 / 1855)· Date of the month (subsidiary dial at 12 o’clock)· Day of the week (subsidiary dial at 12 o’clock; indications given in French)· Hours and minutes of a second time zone, known as doubletour d’heures(subsidiary dial at 3 o’clock, time-setting by push-pin at 1 o’clock)· Metallic thermometer according to the Celsius scale(half-circle graduation at 6 o’clock with “Chaud” / “Froid” indications (“Hot” and “Cold in French); not considered as a horological complication)Case-back polished.White enamel dial with radial Roman numerals (subsidiary dial at 9 o’clock) and Turkish numerals (subsidiary dial at 3 o’clock); blued steel “Spade” and “Fleur-de-Lys” hands.Movement 19’’’, rhodium-plated, two going barrels, gold double-train of wheels, straight-line equilibrated ??? lever escapement, cut bimetallic compensated balance with gold poising screws and blued steel hairspring with terminal curve, polished-steel index-regulator; dead independent seconds work mounted under the dial.

Lot specifications (Antiquorum)

Model: made for the Turkish market; retailed by Kabata or Labate (?), probably Ottoman Empire; Case No.: Unnumbered (by “J A N”); Caliber: 19/20’’’, straight-line lever escapement; Diameter: 53.5 mm; Signature: Movement (in Arabic letters by the retailer)