I have bought this watch more out of curiosity and for it’s nice and clean looks. I cannot find much about this watch marked ‘Swiss Made’ and 'Nelson' on the dial.
Mikrolisk has the following entries for Nelson:
- Nelson, Costal Watch SA., Biel/Switzerland, registered 1957
- Nelson, Cimex Sarl, Watches, Bucharest, Romania, registered 1943
- Nelson Co. (with owl in the logo), movements and cases, Leon Sichel, La Chaux-de-Fonds, Switzerland, registered 1887
- Nelson Watch, Emile Gander Fils (sons), La Chaux-de-Fonds, Switzerland, registered 1914
The watch is running and keeps time well, both lying on the table in different position, as well as on the wrist, where I carried it around all day.
When I put it on the timescale/timegrapher, I get weird readings, it’s hardly in a position to pick up the half beats per hours and shows me anything from +400 seconds per day to -650 seconds per day, when I move the microphone in different positions. This reminds me of the readings when I put a watch with the wrong type of escapement (cylinder) on the timescale.
On the other hand, these are readings (perhaps not that dramatic) when there is something badly wrong with a lever escapement watch, like worn out bearings and a defective balance staff. But then, it would not run so well and precise.
I de-magnetized the watch and cleaned the hairspring in a special solution.
It is definitively a lever escapement, marked ‘Nelson’, perhaps there is some other noise in the watch which disturbs the readings.
The Ranfft database has nothing on Nelson.
Has anyone an idea what caliber/kind of movement this is? Being so simple (no shock protection or compensating balance) it seems strange that it should have 23 jewels as marked on the movement and dial.
Nelson, Cimex Sarl, Watches, Bucharest, Romania?