Miyota 9015 and alternatives
One of the most important manufacturers of mechanical watch movements is the Swiss company ETA, which belongs to the Swatch group. In consultation with the Swiss competition commission WeKo, ETA announced some time ago that it would not be supplying any other manufacturers with movements in the future, since they only want to use all movements for their own brands. Thus, the watch industry started to move and many watch manufacturers were looking for alternatives. This made movements by Miyota, Seiko and Sellita important ETA alternatives. In the following, we will therefore take a closer look at the ETA 2824-2 and popular movements from other manufacturers (Sellita SW200-1 and Seiko NH35).
The caliber 2824-2 has been manufactured by ETA SA Manufacture Horlogère Suisse based in Grenchen (Swiss canton of Solothurn) since 1982 and is a classic three-hand movement with stop seconds, date display and quick date correction. The predecessor, the ETA 2824, has been in production since the early 1970s. The factory is equipped with the Etachron regulator system and the automatic elevator is wound in both directions (bidirectional). All in all, the ETA 2824-2 is one of the most popular movements among connoisseurs and a perennial favorite of the mechanical movements – unfortunately, availability is now very limited (see above).
Since patent protection has expired, the design of the ETA 2824-2 has not been protected for many years. The Swiss Sellita SA from the well-known watch town of La Chaux-de-Fonds has taken advantage of that and has created a clone of the ETA 2824-2 movement, the Sellita SW200-1. This movement is almost identical to the ETA 2824-2 and has meanwhile established itself among connoisseurs.
The Seiko NH35 is also a classic three-hand automatic movement with a second stop, date display, quick date correction and manual winding. In contrast to the three previously mentioned movements, it has a lower vibration (21,600 A/h vs. 28,800 A/h), so that the second hand does not run as smoothly. The accuracy values are also worse by specification.
Finally, for a better comparison, a compact overview of the technical data of the four automatic movements presented: