Since the announcement that, sadly, Phoenix straps will soon be no more I thought maybe we could put together a gallery of pictures?
Here's a couple of late 1960s watches with some natty / tatty nylon:
Left: 18mm Admiralty Grey (issued) on a Smiths 6B
Right: 20mm Admiralty Grey with a deployant clasp on an Omega SM300
https://i.imgur.com/hrauAvx.jpg
https://i.imgur.com/kNt9ll6.jpg