The Reference 57260 was commissioned by a private collector. Photo: Vacheron Constantin.

Uber-luxury Swiss watchmaker Vacheron Constantin recently unveiled a new pocket watch — dubbed “the most complicated watch ever made” — that includes a Hebrew calendar.

The watch — called “Reference 57260” — displays the Hebrew digits for the day, month, decade and century. It also indicates when leap years fall within the 19-year lunar cycle; and on what day the Yom Kippur holiday is held each year.

According to Vacheron Constantin’s website, the time-piece took three watchmakers more than eight years to design from scratch; it has more than 2,800 components; its white gold casing measures 3.86 inches across; and is 1.99 inches thick. It has a total of 57 complications, including three full calendar systems: a Hebrew calendar, a Gregorian calendar and an astronomical calendar.

The astronomical calendar includes a display of the phases and age of the moon, as well as the different seasons, equinoxes and solstices. The watch also shows what time the sun will rise and set in its owner’s home town, and the length of each day and night. There is even a hand that indicates the movement through the Zodiac.

Roman numerals show the local time; small gold hands show a second time zone; and there is a world-time indicator, as well. Other features include an alarm — with its own single gong and gradual hammer striking — and a power-reserve indicator.

Vacheron Constantin said the Reference 57260 was commissioned by a private collector and is not available for purchase, Bloomberg reported. The Swiss manufacturer declined to reveal the exact price of the watch, at the request of the client, but Bloomberg estimates its value to be more than $5 million.