Over the years I have enjoyed searching and the chase collecting spares for restoring/repairing my watches and also just for collecting, some NOS spares I just hated using :)
These are some Seiko 6309 (a few 6105) general spares i've collected over the years, a mixture of used but good spares and NOS plus I have a box of polished (Ben Levy RIP) OEM crystals for these models.
Plus I have draws full of spares for other Seiko models, its a disease :)
https://i.imgur.com/63G1mIl.jpeg
https://i.imgur.com/fZt5aIb.jpeg