Invention of the Ball Bearing Rotor In 1948, Eterna announced a friction-reducing ball-bearing mounted rotor system as part of the...
Ball Bearing Rotor
Manufacturer ETA / Valjoux Caliber Number 7753 Movement Type Automatic Jewels 27 Power Reserve 48 hours Diameter 13 1/4”’ (30.00mm)...
Manufacturer Montblanc Caliber Number 4810 502 Base Caliber ETA / Valjoux 7753 Movement Type Automatic Lignes 13 1/4”’ Diameter 30mm...
Brand Mido Caliber Number 60 Base Caliber ETA A05.H31 Movement Type Automatic Jewels 27 Power Reserve 60 hours Lignes 13.25”’...
Manufacturer Montblanc Caliber Number 4810 503 Base Caliber ETA / Valjoux 7754 Movement Type Automatic, chronograph Lignes 13.25” Diameter 30mm...
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Seiko Instruments (SII, TMI) Caliber NH34
Hi mrdibujante, from the specs chart above: "Rotor Direction: Bi-directional (Magic Lever)" indicates that it…
Miyota Caliber 2035
Thanks.
How to Identify ETA Movement Caliber…
Glad you found the information to be useful. Thank you for the comment.
La Joux-Perret Caliber LJP-G100
The Zelos Eagle 2 also uses this movement
Seiko Instruments (SII, TMI) Caliber NH34
@Mark: troubles with a GMT can happen with many a brand of watches, i.e. Junkers,…
Active Caliber Listings
I have a 7750 in a watch where the day of the week won't line…
Hi mrdibujante, from the specs chart above: "Rotor Direction: Bi-directional (Magic Lever)" indicates that it…
Do you know if this automatic winds clockwise, counter or both?
I am having latency issues with this movement, my watch keeps loosing time. Canit be…
Great basic information for everyone. Thank you.