Rolex® calibre 150 fourth wheel 48 teeth, pinion 6 leaves
Genuine, Rolex ® part # 1012 fourth wheel 48 teeth, pinion 6 leaves fits Rolex® calibers 100, 150
* H. & W. Perrin Company Limited is independent of and not affiliated with or sponsored by Rolex®. Rolex® warranty does not apply to parts supplied by H. & W. Perrin Company Limited. Using generic parts may devalue your watch.