1931 – Rolex 620, first automatic with rotor winding
1942 – Felsa 410 / 690 Bydinator, first automatic with bidirectional rotor winding
1947 – Eterna 1237, first gents automatic with ball-bearing rotor
1950 – ETA 1256, first (rotor) automatic from ETA
1950 – AS 1336, first AS rotor automatic
1957 – Buren 1000, first micro rotor automatic
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