They say ETA movements are great, but even ETA movements have different grades

 　   Nowadays, many watches feature an exhibition case back, making it easy for us to directly appreciate and observe the movement in operation. However, many friends also ask why there is such a big price difference between watches that use the same ETA movement? Naturally, this is also related to factors such as different brands, watch models, and materials, all of which influence the price of a watch.

　　Although they are all ETA movements, different grades still exist between them. The ETA movement manufacturer divides its own movements into four grades:

　　Standard, Elaboré, Top, and Chronometer. These four grades of ETA movements use the same mechanical structure and may look identical on the outside, but there are differences in material selection, manufacturing quality, and the finish of the components. This ultimately results in different standards for timekeeping accuracy.

　　Standard grade:

　　Mainspring: Nivaflex NO material

　　Balance spring: Nivarox 2 material

　　Shock absorber: Etachocs

　　Adjusted positions: Two positions

　　Tolerance: ±12 seconds

　　Positional variation: ±30 seconds

　　Isochronism: ±20 seconds

　　Elaboré grade:

　　Mainspring: Nivaflex NO material

　　Balance spring: Nivarox 2 material

　　Shock absorber: Etachocs

　　Adjusted positions: Three positions

　　Tolerance: ±7 seconds

　　Positional variation: ±20 seconds

　　Isochronism: ±15 seconds

　　Top grade:

　　Mainspring: Nivaflex NM material

　　Balance spring: Anachron material

　　Shock absorber: Incabloc

　　Adjusted positions: Five positions

　　Tolerance: -4/+10 seconds

　　Positional variation: ±15 seconds

　　isochronism ±10 seconds

　　ETA movements of different grades differ in materials and workmanship, so naturally their prices vary too. Furthermore, for luxury watches, the product added value is very high. For every 10% increase in cost, the retail price may increase by 20%.30%, or even more. This is why watches that seemingly use the exact same exterior and movement can have vastly different price tags.

Replica Longines Conquest series watch

　　In addition, many watch enthusiasts also mention that buying a domestic Seagull replica movement for just 2000 poundsReplica watches, in actual wear, only has a daily error of 1 or 2 seconds, so why still buy an ETA movement? The primary reason is that the manufacturing precision and materials used differ between the two, with the biggest difference lying in stability. To use an imperfect analogy, a Seagull movement and an ETA movement are two different buildings; under normal conditions, no difference can be seen between them. However, in the event of an earthquake, the Seagull can only withstand up to level 6, whereas the ETA can withstand level 7 without sustaining damage. Of course, once a certain intensity is reached, both movements will fail.