Rolex® calibre 300 upper escape wheel jewel hole conical
Genuine, Rolex ® part # 2617 upper escape wheel jewel hole conical
* 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.