The slide-out electronic part of the movement (btw: I found the ESA 9158 to be even more repair-friendly than the already great earlier Dynotrons). ![]() Okay that should suffice - lets start the. ![]() Rests of dried oil in the jewel bearings of the balance wheel - check.ĭust everywhere - check. With the rubber gasket broken and hard as wood (blue circle) I already had a first indication what might be wrong: Probably no service for a looong time.let´s collect some further proofs for this assertion. The silver-blue dial and the nice contrast with the red second hand was the reason why I had to have it.Ī first look on the ESA 9158 movement inside. When I got it, it was a non-worker albeit in an almost NOS-looking appearance. ![]() I already finished this project more than two years ago, but as there are almost no detailed infos on this movement I thought I´ll give it some "internet time". Here the revision of another watch with a movement from the notable ESA Dynotron series - a Wittnauer Electronic with an ESA 9158 day-date movement.
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