?JUMP HOUR? what are they !

[Martin]

Here's one of a real jump hour, look at the hour advance at about 2:00

[is that my watch]

I got it we shall call them disc hour

[is that my watch]

Here's one of a real jump hour, look at the hour advance at about 2:00

yeah saw one of them thought lovely till I saw the price tag but do like me a sic

[Martin]

Alpha has a number of them, of which I like this one best:

[is that my watch]

they even done a pocket watch dics hour lol

[Whoa]

I have been wondering about this to.. Thanks for clarifying this guys!

-Sent using Rock, Paper and the occasional Scissors-

[Mediocre]

I do not love the vintage jump hours that appear to be in a case, but some of the newer designs from Perrelet and Oris are astounding.