The hands look okay to me. This is one of the known variants of the chrono sweep second hand.
This looks to be a correct mk1 early series (no paddle on chrono hand, blue sub register hands, short second markers on bezel). it looks very similar to mine that also has no pearl on the bezel. This is actually correct as the very first A277 in 1968 had no pearl on the bezel. Crown should have the small Z inside the star.
Glad we can help
Mk2 have paddle on chrono hand, copper sub register hands and thicker second markers on bezel. Crown has NATO star also.
I must admit chrono hand visibility is crap on mk1 series, reason why they did change it on later series