[TheTigerUK]

I have put a thin layer of pure vaseline onto a couple of my GL-831 straps, optically they look much better than before but I am not really sure if this is good for the rubber though!
I won't take the risk of boiling them because I am afraid they may dissolved as they are quite old...

Mine were very old and in poor condition but no problem and the Olive oil made them look superb (imo).

 

[TheTigerUK]

Boil them! Mine were so hard I was afraid to wear them...boiled them once and they are as supple as the day Seiko made them. Got my all original 6309 and 7548 on them.

Rob

I was amazed