Especially after the "timely crisis" broke out, the three complex functions have been developed unprecedentedly. Because the mechanical watch with simple timing function at that time could not compete with the quartz watch with accurate time at all.
In this grim situation, some traditional brands with the ability to design and manufacture watches with complex functions began to turn to produce watches with complex functions, and perpetual calendar, as one of the most exquisite and practical complex functions of watches, was a very advantageous choice, because quartz watches at that time could not challenge traditional mechanical watches in this field.
Perpetual calendar literally means "eternal calendar", which can display correct date information and distinguish different days and months (including leap years), so it is very convenient to use.
In order to realize the function of perpetual calendar, we must rely on the ingenious combination of gears, cams and levers with different sizes, and automatically adjust them according to the irregular changes of the month and day.
In addition, many parts in the perpetual calendar system belong to special-shaped parts, not standard parts, which are difficult, time-consuming and expensive to make, so that the perpetual calendar function has been regarded as works of art since its birth.
Perpetual calendar literally means "eternal calendar", which can display correct date information and distinguish different days and months (including leap years), so it is very convenient to use.
In order to realize the function of perpetual calendar, we must rely on the ingenious combination of gears, cams and levers with different sizes, and automatically adjust them according to the irregular changes of the month and day.
In addition, many parts in the perpetual calendar system belong to special-shaped parts, not standard parts, which are difficult, time-consuming and expensive to make, so that the perpetual calendar function has been regarded as works of art since its birth.
Watch appearance: the diameter of the watch is 39mm, and the thickness of the case is 9.9mm. The case and crown are made of fine steel, and the quiet and peaceful silver dial makes the whole look more comfortable. Add rhodium-plated time markers and toffee-shaped hands. This collocation is really beautiful. Model of movement: The movement adopts 925/ 1 movement with a thickness of 4.9 mm ... 28,800 shocks per hour. Let everyone not worry about the accuracy of the watch. The power reserve can reach 43 hours, which can meet daily needs.
Section 2: Jaeger-LeCoultre Calendar Master
The ultra-thin main calendar series watches are very close to the moon phase series. However, the moon phase was replaced by the calendar, which reduced the complexity of the dial. The simple, simple and quiet design makes this watch look cleaner.
Watch appearance: the diameter of the watch is 40mm, and the thickness of the 7.45mm case is quite thin. Fine steel case with silver-gray dial. The hands are also toffee-shaped, rhodium-plated and polished. Sapphire crystal glass is used for watches and mirrors. Black leather strap. The whole looks simple and atmospheric. Very suitable for mature men to wear. Movement model: This watch adopts a movement of 899/ 1. Although the power reserve is less than 40 hours, the accuracy is still relatively accurate, with 28,800 vibrations per hour.