![Rolex® calibre 640 side dial screw](http://perrinwatchparts.com/cdn/shop/files/no_image_available_b3486bf3-8ebb-4703-906d-1b1d128f33c6_800x800.png?v=1704921803)
Rolex® calibre 640 ratchet wheel screw
Genuine, Rolex ® part # 3612 side dial screw fits Rolex® 600, Rolex®620, Rolex®630, 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.