Perturbations and the act of observation: A Seiko 6139-8040 from November 1974

Apr 26, 2023

In classical physics, a foundational principle is that it is possible to assign precise values simultaneously to all physical properties …

A Seiko 6139-8002 from February 1972

Aug 13, 2021

I bought my first Seiko 6139 chronograph in the summer of 2008, I think from an eBay seller in the …

Jan 1, 2017

Towards the end of June 1975, Pink Floyd’s Dark Side of the Moon entered its 118th week in the UK …