High Quality Swiss Made Part 1530-7825 Mainspring Strength-Standard for Rolex Watches. These are direct replacement and will work for Rolex caliber 1520, 1525, 1530, 1535, 1555, 1556, 1560, 1565 GMT, 1570, 1575, 1575 GMT and more.
***Time Connection II Inc. is independent of and not affiliated with or sponsored by Rolex Watch U.S.A. Inc. Rolex warranty does not apply to non-genuine parts supplied by Time Connection II Inc.***


