28mm Baume & Mercier 30J Micro Rotor Automatic Wristwatch Movement BM12820 Swiss There is light spotting on

There is light spotting on the dial

Model: Constellation Case Back Only

Movement is replaced with a Rodania

Model: Lamont

Outside Diameter: 44mm

28mm Baume & Mercier 30J Micro Rotor Automatic Wristwatch Movement BM12820 Swiss There is light spotting onProduct Description Item: Wristwatch Movement Brand: Baume & Mercier Movement: Micro Rotor Automatic Jewels: 30 Caliber: BM 12820 Country: Swiss Gender: Men's Product Measurements Diameter: 28mm Product Condition The Baume & Mercier Caliber BM 12820 is a vintage high grade Swiss automatic watch movement introduced in 1962. It is highly regarded by collectors for its ultra thin profile, achieved through the use of a micro rotor design. Overall