Playing with light. From eccentric applications of phosphorescence to designing guilloché patterns in Excentro, Jon and Chris discuss a number of new releases and prototypes in progress. Interested in sponsoring a future episode of Off Hours? Get in touch. This episode of Off Hours was made possible in part thanks to the Amazon Associates Program. As a part of the program, the show earns from qualifying purchases when you click on links to Amazon (like this one) from our show notes. The process of making Swiss Super-LumiNova Behind the scenes at TRITEC with The Naked Watchmaker TRITEC Swiss producer of phosphorescent pigments James Thompson a.k.a. The Black Badger MB&F GoS Watches LIT Phosphorescent pigment from Stuart Semple Project Minotaur Patek Philippe 6102P An example of a sky chart complication that displays the current position of the stars overhead Sarpaneva Watches Citizen Caliber 0200 Citizen’s new high-end mechanical watch caliber, featuring free-sprung balance, developed in partnership with Swiss subsidiary La Joux-Perret Citizen Calibre 0200 Prototype An in-depth look at Citizen’s new caliber, from SJX Why Machines That Bend Are Better Derek Muller on bi-stable & other compliant mechanisms Frederique Constant 40Hz Silicon Oscillator Patek Philippe Pulsomax A look at Patek Philippe’s silicon-based Pulsomax escapement, along with several other silicon developments from its Advanced Research division Girard-Perregaux Constant Force Escapement Tissot Powermatic 80 Fitted with a silicon hairspring Seiko Spring Drive Open Movement Project Excentro The software Chris uses to design guilloché patterns