Case and Dial Design
The watch is housed in an 18K gold four-body, 'bassine et filets' case. The front cover is intricately decorated with the Russian Imperial arms rendered in black, blue, and red champlevé enamel, accented with rose-cut diamonds. Gold setting levers are integrated into the design, protruding from beneath the bezel for adjusting the perpetual calendar functions.
The white enamel dial features radial Roman numerals and an outer minute track, with the outermost seconds division marked in fifths. Five-minute intervals and seconds are indicated by red Arabic numerals. Four subsidiary sunk dials display the perpetual calendar information, including day, date, and month, as well as a subsidiary seconds register that incorporates the moon phase aperture and lunar age display.
Evidence for this section
- “C. Four-body, bassine et filets, polished, the front cover decorated with the Russian Imperial arms in black, blue and red champlevé enamel and set with rose-cut diamonds”
- “gold levers for calendar setting protruding from under the bezel.”
- “D. White enamel, radial Roman numerals, outer minute track, outermost seconds divided into fifths”