If you're prepared to risk losing the "Grand Quartz" I would expect that to clean up with a mild detergent solution and cotton buds, or even in an ultrasonic cleaner
@freddo started
London Fixed Gear and Single-Speed is a community of fixed gear and single-speed cyclists.
@freddo
If you're prepared to risk losing the "Grand Quartz" I would expect that to clean up with a mild detergent solution and cotton buds, or even in an ultrasonic cleaner