the 21-jewel Calibre 8531 automatic movement is a true workhorse (a movement that made it's way inside many of the IWC Ingenieurs of the era) weighing in at just under 9mm in thickness
Transmissions received by NASA one hour after launch indicated that all instruments were functioning except the solar panels
The warm tone of the Rhodium dial is a welcome departure from the common black dial for an overall look that can't be ignored
this piece features a dial fashioned in the traditional DOXA style with decorative script under a warm domed acrylic crystal
dubbed the Kon Tiki after Thor's wooden raft
Girard-Perregaux Gyromatic Archived the 21-jewel Calibre 8531 automaticIts systematic, hydromatic, ultramaticwhy its This watch, the Gyromatic by Girard Perregaux. Girard Perregaux first applied the name Gyromatic to self winding movements in 1957. These movements beat at the standard 18,000 bph (beats per hour). But as with anything, there was room for improvement, so in launching the Gyromatic line, thats exactly what Girard Perregaux set out to do. While Girard Perregauxs first automatic watches used base movements