Rolex® calibre 645 hour wheel ht. 1.40mm
Genuine, Rolex ® part # 3584 click - old execution fits Rolex® 600, Rolex®620, Rolex®630, Rolex®635, Rolex®640, Rolex®645, Rolex® 700, Rolex® 710, Rolex® 760
* 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.