![Rolex® Crystals CY-ROLC110](http://perrinwatchparts.com/cdn/shop/files/CY-ROLC110_300x300.jpg?v=1683040236)
Original plastic crystal with calendar bubble, RLX® Cyclop 110, part number 25-110, fits case number 6510, 6511. The same crystal without the calendar bubble use Tropic 13
* 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.