The incremental back/forth jumping hour hand is a great feature on all the Omegas I own (except the Speedy 45 XI) which I suppose makes them all great travel watches. I think the GM annual calendar should be branded as the Datemaster and not a Globemaster

 

So ideal for Hitch

 

@Riviera Paradise here's your GMAC Sedna-Steel video ....
(forgot to take a camera with a higher resolution and better auto-focus, so apologies in advance for the rubbish quality).

 

Superb video @Longbow Crystal clear explanation. Thanks very much for posting