Original plastic crystal, RLX® Tropic 3, part number 25-3, fits case numbers 6503, 6504, 6505, 6507, 6508, 6509, 6526, 66156616, 6617, 6618, 6619, 6620, 6621, 6622, 6623, 6706, 6707, 6710, 6711, 6712, 6713, 6715, 6717, 6718, 6719, 6720, 6721, 6723, 6724, 6
* 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.