I saw this kind of bracelet on a nos skipper 73464.
in my opinion endlinks in picture are not for autavia. you can modify them, but I don't like this kind of job because you risk do damage serial numbers.

: Hi Mark,
: Its going to be a matter of fit, adjust & repeat.
: I dont believe the 1163 case ever ran these block bracelets from
: the factory.
: There are 2 different profiles for the 11630 case & the GMT
: uses the "fatter" of the two profiles so it could well
: be that the end-pieces you have will be intended for the other
: 11630 profile.
: I recommend you first open them up gently to be too large a fit
: & then place a piece of rubber over them & pinch them
: down until they have a tight fit. ( Note - ok to use plyers on
: the rubber to pinch them closed if your fingers cant close them
: enough )
: Good luck - Darren

: Here's an 11630 i have on this bracelet
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