![Rolex® calibre 600 regulator - breguet hairspring](http://perrinwatchparts.com/cdn/shop/files/no_image_available_7c616018-7ef2-49e6-8d94-9365a40c619b_800x800.png?v=1704921006)
Rolex® calibre 600 regulator spring
Genuine, Rolex ® part # 3561 / 3861 regulator - breguet hairspring fits Rolex® 600, Rolex®620, Rolex®630, Rolex®635, Rolex®640, Rolex®645, Rolex®700, Rolex®710, Rolex®760, Rolex®765, Rolex®775
* 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.