Dated March 1970. Proof/Proof. From original owner.

 

These are very under-rated IMO, with most people focusing on the -8110. Unfortunately, those straps get a bit delicate after 50 years and often tear around the holes. I might be tempted to remove it and wear the watch with a repro strap.

 

Thanks Dan. I have had an 8110, I prefer this. Yes, original strap needs to be stored away.

 

My January 1970 resist/resist. Who can understand the proof --> resist transition? Unless it is because mine is an 8009 for the US market.