Universal Genève Tri-Compax Moonphase GAS Line watchmaking in Switzerland was a

watchmaking in Switzerland was a cottage industry—literally

for "Watch Wristlet Waterproof

Although Martel continued to collaborate with Universal Genève

is shielded by an anti-magnetic dust cover

where the movement is shrouded in a steel “clamshell” that then fits into the top bezel assembly with lugs affixed via the aforementioned four screws

Universal Genève Tri-Compax Moonphase GAS Line watchmaking in Switzerland was aThe term 'Grail' in wristwatch collecting suggests a stature of rarity, excellence, historical significance, and an emotional 'X Factor' that blurs the lines between reason and heart. Most of the time, however, the word is overused and applied simply to expensive watches that are hard to get new at retail. This is not one of those times. The Universal Genve Tri Compax line is one of the most desirable series of complicated vintage models ever made.