6497 is the classic movement of Unitas, now it is belonged to ETA after being acquired. After Experiencing the stifling “Quartz Storm”  in the 80’s, 6497 left as one of the large size movement used in pocket watch. At that time, 6497 was rarely used because it is too large. However, big watches are very hot today, so 6497 can satisfy watch makers’need exactly who make those watches that have large a case. Although 6497 is very large, it has a rational structure and a surprising accuracy. With a 18000A/H low frequency, but it has passed the COSC certification.

Many peopel say that hand-wound mechanical movement is the final target of watch fans, only manual winding is the straightforward communication between you and a watch. 6497, mainly as a pocket watch movement before, is really large, especially its balance wheel. There are two ways that Panerai uses to polishing 6497 movement, one is to engrave “Panerai” on the plate, and the other is to polish common Geneva stripes, the latter is more special.

Unitas 6497 also has some relationship with Omega Railmaster, which is specially designed for the railway workers for keeping improved accuracy. Inside its large case of Railmaster, there is the 6498 movement, the brother of 6497, only has some modification on its small seconds, precious run 9@sec changed into traditional run 6@sec. Besides, a German watch, D.Dornbluth&Sohn, also uses 6497 movement, the watch mainly used the Gear Train system of 6497, in addition to German special polishing ways, finally reflected a fresh style totally different from Swiss brand: pink gold 3/4 plate, “fausses cotes” decoration, 18 jewels, 4 in screwed gold chatons, straight line lever escapement and “swanneck” micrometer regulator.

In ETA movement family, amony the most classic five movements, Valjoux 7750, Unitas 6497 and Peseux 7001 came from the successful acquisition of ETA.

ETA 7001 is the summary of traditional Swiss three small three seconds version, different with 6497, it is small and exquisite. Like the classic combination of ETA 2892 A2 and ETA 2824-2, ETA 7001 has well filled the small manual winding movement field. You have to admire this company’s strength, the emergence of ETA 7001 helps many watch makers can produce hand-wound small three seconds wristwatches. The movement was first designed and manufactured in 1971, its former and latter movements, like 2660, 2691, 2801, have caused great impact, but can not compared with 7001.

7001 is much smaller than 6497, so it has a higher frequency than 6497, 21600A/H. Many people always think it will be more perfect if the frequency is reduced to 18000A/H.

Article Post by Swiss Replica Watches Store