Rolex® calibre 1030 head case screw (110/240)
Genuine, Rolex ® part # 6905 upper center wheel hole jewel
* 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.