> Caliber 3175, 3185, 3186, 3187 Rolex GMT-Master, GMT-Master II. Genuine Rolex 3135-570 Oscillating Weight Rotor is been used by Rolex in following calibers for respective models. Genuine Rolex Cal 3135 570, (3155 3175 3185 ) USED/pre-owned Oscillating Weight.
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