Ball Bearing Rotor

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Manufacturer Montblanc Caliber Number 4810 503 Base Caliber ETA / Valjoux 7754 Movement Type Automatic, chronograph Lignes 13.25” Diameter 30mm...

Manufacturer Montblanc Caliber Number 4810 502 Base Caliber ETA / Valjoux 7753 Movement Type Automatic Lignes 13 1/4”’ Diameter 30mm...

Invention of the Ball Bearing Rotor In 1948, Eterna announced a friction-reducing ball-bearing mounted rotor system as part of the...

Brand Mido Caliber Number 60 Base Caliber ETA A05.H31 Movement Type Automatic Jewels 27 Power Reserve 60 hours Lignes 13.25”’...

Manufacturer ETA / Valjoux Caliber Number 7753 Movement Type Automatic Jewels 27 Power Reserve 48 hours Diameter 13 1/4”’ (30.00mm)...