We’ve done quite a few El Primeros here at the workshop, but never the calibre 4021. The 4021 is a modification of the calibre 400.
Instead of the hour recorder and date, the 4021 has a pretty nifty power reserve indication. On top of that, the movement is skeletonised around the balance and escapement, so that these components are visible through an opening in the dial.
The dial looks a bit Breguet-like, and there is of course no hour recorder as on the calibre 400.
This watch was sent in from Lithuania, just to make the whole thing a bit more interesting đ Continue reading