The movement number of each brand has its own logic. It may be the year of research and development, the diameter or thickness of the movement, etc. The number derived from it also has a certain coding mode. Professional watch fans only need to hear the movement. The number can tell the brand. Numbers such as 2892 and 7750 are definitely not unfamiliar in the watch market. They are representative of universal movements, while 3135 and 4130 are well-known numbers for Rolex. Players who are interested in PP's old watches will definitely be impressed by the two figures of 600 and 460, and even have watches equipped with this movement, of which 460 is the most classic and high-quality. 460 came out in the 60s of the last century, and it was also one of the most apex of Swiss automatic watch development. At that time, it was made by PP’s R&D experience for Cal.600, modified to make the best movement, personal play The experience is worth sharing with cousins.
The 12-600, which was published in 1953, was the first-generation PP self-winding movement. The cal.600 movement of the bearing has seven more rubies; it is equipped with a ball bearing in the bearing, and of course it also cancels the gooseneck fine-tuning. The structure of the two is not the same. Basically, 12-600 is an automatic 10-200 The winding type, and 27-460 is an automatic winding model belonging to the 23-300.
Cal.460 is equipped with high-quality blue steel double-layer hairspring, with a vibration frequency of 19,800 times. Although it is a slower vibration frequency, the travel time is stable and accurate. The full chain has more than 50 hours of energy, which is more than modern The new models of the watch are more accurate, and are equipped with models such as 3445, 3514, 3541, 3435, and 3439. There are two types of PP weight balance wheels. The early balance wheel ring is wider, and the weight is located in the balance wheel ring. Because the production is more difficult, it is more worthwhile from the perspective of process technology; the later weights are better. On the inner side of the Habitat ring, this is also the method used by the current PP,Suitable for mass production.
Cal.27-460 is praised by collectors and technicians as one of the well-designed and durable automatic winding movement . Its working principle is to be two-way winding. When the automatic tourbillon swings, the automatic wheel will drive the eccentric pinion, and then drive the rocker arm. The rocker arm has two woodpecker-like beaks, which drive the inverted tooth wheel in a push-slip manner, and then pass the kinetic energy through the small gear through a transmission wheel. The winding car reaches the mainspring, and the winding mechanism works very dexterously, so the efficiency is excellent. However, the 460 also has its own unique repair skills. When assembling, you need to align the arrow on the eccentric pinion with the heavier side of the automatic tuner in order to maintain the best winding state. Usually the factory has its own uniqueness and assembly skills when developing the movement, and it takes years of experience in repairing antique watches to get it done.
27-460 is more durable because the automatic rotor is equipped with seven balls. The first-generation 600 movement is 30 jewels, the second-generation 27-460 is 37 jewels, and the latter is more. 7 of them are rubies in ball bearing. Even if they are replaced by steel balls later, the board of 460 is still marked with 37 stones. The 27-460 was launched in 1960 until it was discontinued in the mid-1980s, and probably only 20,000 pieces were produced, because the production volume was small and there was room for added value.
PP's first self-winding perpetual calendar movement is also based on 460, which can be called a classic among classics. 27-460 is absolutely unacceptable. If you want to find the only flaw in the beauty, yes When changing the date at midnight, the hour hand will move to the right and jump to the position of one minute. This is because the hour hand wheel drives the date wheel, and the hand shift caused by the excessive pressure of the instant jump, but after the next hour Back to normal.
In order to appreciate the well-structured and exquisitely polished movement,The watch owner has specially ordered a gold transparent back cover to see the operation and every detail of the movement. To this day, its evaluation is still higher than that of all newly developed self-winding models, and it is the ultimate magic machine that all collectors must have.
.
