Many novices assume that a movement that “ticks” more than once per second is a trait of high-end watches, but it’s actually nothing special. Nearly all mechanical watches, from Chinese and Japanese value lines to Haute Horology, tick at least 5 times per second! The smooth 8-beat seconds hand now associated with fancy Rolex watches isn’t the pinnacle of technology. Seiko and Zenith popularized 10-beat movements in the late 1960’s, and some exotic pieces tick even faster!
Some grails are special because of their association with history (see my piece on the “Scuderia Ferrari” Zenith, for example), while others are just plain odd. This is the latter. The Girard Perregaux Casquette (Ref. 9931) is a mid-1970’s LED quartz watch with innovations throughout. It’s just too bad the quartz revolution ended with a whimper instead of this kind of excitement!