Rolex® calibre 520 lower balance hole jewel
Genuine, Rolex ® part # 3657 separating plate fits Rolex® 520, Rolex®530, Rolex®620
* 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.