While cleaning up a new arrival I noticed something strange...
The case on the right in each photo is serial No. 14* and the case on the left is a 27*.
Spot the difference? The 14* has a bearing at the 7 O'clock position under the bezel.
Does this help in any way to settle the discussion that these cases, the 14*, were around in the early days of the Automatic Autavias?
I hope so.
Actually another thought...this 14* Siffert came with a '69 G/F bracelet with HLD end-pieces which match the case perfectly - no spearing your palm fitting them :-)