Complication clock in gilt bronze and Griotte red marble, with four enamelled dials indicating the hours (with double entries in base 10 and base 12), the month, the day of the month, and the season, with a blue enamelled half-dial for the phases of the Moon, resting on four gilt bronze feet and an oval base in Griotte red marble with a frieze of pearls; the hour dial signed by the enameller Barbichon; (small accidents; restorations, in particular, the dial for the phases of the Moon redone). Signed Martinet / London (on two enamel plates) for Hubert Martinet, watchmaker received master in Paris in 1762. End of the 18th century. H: 40 cm, W: 31 cm, D: 17 cm On October 5, 1793, the National Convention issued a decree establishing the decimal system dividing the day from midnight to midnight into ten parts, which were themselves divided into ten parts. By the same decree the revolutionary authorities established the republican calendar, whose durability was also quite relative and which was officially abolished as well as the decimal system in 1806. However, some rare clocks displayed the double numbering during a period between the end of the 18th century and the beginning of the 19th century. Hubert Martinet was probably more likely to have been a merchant clockmaker, moving to London in 1768 while maintaining his Parisian activity. One of his masterpieces remains the elephant clock, now in Waddesdon Manor (Great Britain). A very similar clock, with a duodecimal dial, is now in the Conservatoire des Arts et Métiers in Paris; larger (41 cm), the clock is flanked on the left and right by two porcelain cookie figures.