How a watch works...

[DoubleSix]

Probably posted before somewhere on PH but the most enjoyable 20 mins of YouTube I've seen in a long time.


https://m.youtube.com/watch?v=cZwq1KL4SD0

[Lorneg]

http://www.classicchronographs.co.uk/technical-inf...

[michael gould]

not much has moved on from when that film was made in 1947 !