Hysek’s IO 42mm Annual Calendar offers a new take on the well-loved complication from which it takes its name, offering two discs for the double-window date display and a month display that is aesthetically unique and technically forward. The large date is evident on the sun-brushed dial just above center, and the month display, also disc-based, is evident in an aperture at 8 o’clock. There, the current month is shown via an arrow pointing to numerals one through twelve for each month of the year. The small seconds subdial is at 5 o’clock.
The IO 42mm Annual Calendar, crafted in steel with a screwed-down crown, is fitted with a Swiss-made automatic movement decorated with Cotes de Geneve. It features 193 components and 30 jewels, as well as a frequency of 28,800 vph and power reserve of 44 hours ; it is visible through the watch’s sapphire crystal caseback. The dial, available in blue or gray, showcases a variety of seemingly disparate elements that artfully come together as a unified whole. The comma-shaped window revealing the months, using black Arabic numerals on a white background, adds an interesting “swoosh” juxtaposed by the circular guillochéd seconds counter, artfully interrupted by the numeral five. The stylistic tuning fork-shaped hour markers, with the Hysek “H” at 12 o’clock and Roman numerals at 1, 5, 7 and 11, add further interest.
The lugs are familiar to the Hysek IO collection (as are the hour markers), with three “claw marks” on each. The watch variation with the gray dial comes on a black alligator leather strap, while the blue-dial model comes on a blue alligator leather strap. Price: $7,900