Rolex® calibre 645 screw for ratchet bridge
Genuine, Rolex ® part # 5601 barrel arbor fits Rolex® 635, Rolex® 640, Rolex® 645
* 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.