Jaeger-LeCoultre

A funky look for this instrument of precision. The Cal 906 and its plastic device for the hacking second. And its refined " linen " dial. Which also existed in white: 520 pieces were made in 1970. Best, Nicolas ...  

Why use plastic in the movement?

plastics were considered 'space age' materials back then, didn't have the downmarket stigma of these days. am reminded of the career advice to dustin hoffman's character in "the graduate": plastics. also, i recall seeing magazine ads from the early 70s, f... 

I like how the brushing alternates between the quadrants.

Why plastic, perhaps to cut cost and to also experiment. The 70s was the era of the quartz and it threatened traditional watch making. Just my thoughts. Cheers. 🥃 Geross.