Hi Anthony,

It seems you are referring to this watch, in case others didn't see it:

http://www.chronocentric.com/forums/heuer/index.cgi?md=read;id=25574

Inside is probably a Venus 170. The top register is simply a 30 minute register, just oriented vertically rather than horizontally for that movement.

Fred's is an uncommon silver dial. It is more common to see that orientation on military-style black dial watches with radium numerals. Richard Crosthwaite has one for sale at the moment on Heuer Central:

http://www.heuercentral.com/shop/4587984743/heuer-1930s-40s-chronograph/9229999

Here are pictures of some other Heuers with this movement from Jarl:

http://www.chronocentric.com/forums/heuer/index.cgi?md=read;id=25574

On eBay, they often sell for a little over $1,000, which is a fantastic deal for a vintage Heuer. I think the movements aren't known to be particularly good and these watches are generally on the smaller side, which is they have stayed low in price.

Best regards,
Eric Wind