At the end of the 1960s, ESA electro mechanical watch movement appeared on the market, that movement many brands with some modifications put in their models.

Roamer Electronic 606 is one such model that I will present to you in detail.

Watch runs as an analog  watch with a balance wheel identical to any mechanical watch, with the difference that instead of winding springs there is a small electromagnet controlled by an  transistor module that constantly changes the polarity on the electromagnetic part while the permanent magnet is on the balance, when the polarity changes and magnetic fields collide and the balance starts move. These watches have nothing to do with quartz watches, tick identically as mechanical watches as they are (electro-mechanical), the second hand move like in the mechanical watch.

The Swiss made movement ESA (ETA) 9154 with 13 jewels is extremely high-quality, which is embedded in expensive watches of that time, these movements are extremely accurate and stable, have minimal deviations in operation.

Roamer Electronic 606 is made entirely of stainless steel, has a specific opening mode, a 40mm wide watch of the “Monaco” shape is still noticeable today…

Here’s how to change the battery on your Roamer 606 electronic watch:
Before you unscrew the four small screws on the bottom, you need to pull out the crown, it is a two-part key (the crown that can be removed by pulling harder you literally rip it out, as you can see in the photos on my website).
What I told you refers to if the key on the watch is original and consists of two parts, if the key is not original then you can break it by pulling it out, so the key must be original and consists of two parts, only in that case can the entire battery replacement process be done correctly.
Once you’ve pulled out the crown, you unscrew four small screws and remove the lower part of the case along with the glass, then you turn it down and everything comes out.
This way of changing the battery is extremely impractical and stupid, but this watch is beautiful regardless.