Rolex® calibre 630 upper cap jewel with end piece for balance and escape wheel
Genuine, Rolex ® part # 3697 click spring fits Rolex® 620, Rolex® 630, Rolex® 720, Rolex® 730, Rolex® 740
* 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.