Escapement is a very important part of mechanical watches, its operation directly affects the accuracy of travel time of the entire watch. Now the vast majority of brands are using traditional leverage, while the Omega brand is unique in using coaxial escapement. (Pictured above is Natural Escapement's natural escapement) Co-Axial escapement is the British watchmaker George Daniels George Denise evolved in the Natural Escapement natural Escapement invented by Breguet founder Breguet has the advantage of reducing the friction between escapement parts, thereby enhancing durability. (Above is Independent Double Wheel Escapement independent dual wheel escapement pocket watch) George Daniels Previously developed by Denver, Independent Double Wheel Escapement developed an independent, two-wheeled escapement that required two gear trains and took up a lot of space, apparently making it difficult to use on a watch. In order to make this design can be successfully transferred to the top of the watch, so George Daniels George Dennis will be superimposed on two escapement wheels together, using the same axis, to achieve miniaturization, later named coaxial escapement Co-axial Escapement it. (The picture above shows the traditional lever escapement and Omega coaxial escapement contrast) Co-Axis Escapement was invented by George Daniels George Dennis in 1974 and patented in 1980. Then George Daniels George Dennis added co-axial escapement Co-Axis Escapement to a variety of branded production runs and sought out manufacturers with his designs. (The picture shows the coaxial escapement test version on the Omega movement in 1975) (The picture above is a coaxial escapement test version on Patek Philippe movement in 1980) (Pictured above is a coaxial escapement trial version of the Earl movement and Zenith movement in 1983) (The picture above shows the coaxial escapement test version on the Rolex movement in 1989) Although, George Daniels George Dennis made a co-axial escapement, but in the promotion process repeatedly run into a wall. There had been a time of cooperation with Patek Philippe, during which Patek Philippe's watch movement was fitted with a coaxial escapement to test, and as a result the watch was stolen during actual operation, plus other reasons, eventually discouraging. Until 1999, Omega decided to cooperate with George Daniels George Dennis to start the mass production of coaxial escapement movement. The first batch of Omega coaxial models with Cal.1120 movement, which is ETA2892 movement upgrade, a total of 1000 production, the public for 999, No. 000 was donated to George Daniels George Dennis. Since then, Omega began a gradual adoption of coaxial escapement design, the mass production of its flagship models on top of the brand. However, in the days that followed, there are constantly domestic and foreign watch main reaction, the coaxial escapement design equipped with Omega Cal.2500 movement appears to steal the case. (Stops refers to the mechanical watch movement in the case of adequate power reserve watch outage situation) (The photo shows the first edition of the 2500 Series Calif. Calif. Caliante Cal.2500a without calendar) (The second edition of the 2500 series movement GMT version of the coaxial escapement 2500b movement) After the first version of the coaxial escapement 2500a stole, Omega introduced an improved version of the 2500b movement, the result is still broke the same problem. Omega then in the improved version of the 2500c movement from the original swing frequency 28,800 times reduced to 25,200 times, did not think, and finally appeared stolen. One after another, Omega coaxial movement stole stop, this is undoubtedly a serious quality problem. But Omega has been silent, did not release any official explanation, just kept cleaning returned by the customer back to the maintenance of the watch. Because, Omega's official silence, at home and abroad for co-escapement Omega cause of the theft is also divided on different opinions. There are several views below: (The above picture shows the details of the double-layer coaxial escapement wheel used by Cal.2500 abc three version of the movement magnified, showing its wear and tear) 1. Congenital deficiencies, coaxial escapement design problems. The first version of the Cal.2500a movement, the second version of the Cal.2500b movement, the third version of the Cal.2500c movement of the coaxial escapement wheel are double-decker design, the second layer of the gear not only to and pallet fork occurs Collision, but also directly connected to a gear. This undoubtedly increased its wear and tear, which led to the movement stole. 2. Acquired deformities, 2500 system movement is Omega in the original ETA2892 movement added coaxial escapement, the purpose is to save the cost of re-developing the basic movement for coaxial escapement. This led to the original watch on the outstanding performance with the vertical escapement acclimatized, its structure must be based on ETA2892 and change, lose a lot of room for their own freedom. Department of 3.2500 Department of automatic movement is too far from the escapement, the formation of dry oil debris escapement led to the escape of stolen 4 movement wobble too high, reaching the frequency of 28,800 times per hour, resulting in transmission to the escapement of the lack of power. 5. Escapement wheel metal material is poor. George Daniels George Dennis's experiments on pocket watches and watches are individually made of carefully selected metallic materials. What the Omega mass-produced industrialized thing follows is the material of the original ETA movement, which may cause mismatch. 6. Production and processing requirements of high precision, high defect rate, the early coaxial escapement with a double escapement plus three Ruby rubble, more than a lot of lever escapement. Co-axial escapement in theory is a good design, but from the theory go to reality destined to go through rough. When George Daniels George Dennis found her Rolex and Patek Philippe with a coaxial escapement, the two brands stopped seeing the huge risks behind them. Omega brand into the new century, can be said to be "not afraid to die", it can be said that "dare to try", but also can be said that "in the face of huge competition in the market had to risk", and then adopted the coaxial design. Omega coaxial escapement on the ship, unsuccessful will be Ren. The movement out of this serious problem of stealing, we must continue to study and improve. If you give up halfway, not only coaxial escapement technology has become a rat, but also the brand will be a huge blow. At this point, Omega did not have any escape route. (Pictured above is the triple escapement of the 8500 movement) Fortunately, Omega in the follow-up Cal.2500D movement and the new Cal.8500 movement has been improved to enable the three-tier coaxial escapement wheel, and the 8500 is still compatible with coaxial escapement and the newly designed movement. Further, Omega gradually solved the problem of stealing on the coaxial movement. Only those poor who spent tens of thousands bought Omega coaxial 2500a bc movement watch friend, became a unfortunate test product, when the mouse. The vast majority of watch friends are ordinary people, buy one or two tables are worn as daily, such a watch, durable and reliable or very important. The end of the article, in fact, I also doubt the hot today's "silicon material" application, which leaves time to testify!