That's a reference 3151. Nice.

Maybe $150 in a ideal circumstance. You might was to see what the case is made of. With any luck it's gold.

I think it's a 1940s watch, maybe even early 1950s.

Value is not high, since it's not gold.

Hard to tell from the quality of the photographs. You will need a shot of the insides of the case back and movement. It's probably a caliber 449 in there.

The Shark is included in the next edition of the book. At the time of the book (2008), I did not have a nice enough example of the Shark to include, but I know have a full set example in quasi unworn condition so it will make the next edition. The cross as cross hatch, just like the Polaris. Same er...

Here are the last 2 that I sold:

http://www.watch-prices.com/graphics/rx0819am.jpg
http://www.watch-prices.com/graphics/rx1177m.jpg

I see what your are saying, but it doesn't bother me. There are variants, though yes, one would expect 3 lines.

I think the watch is fine. Do the warranty papers macth the watch?

Good reference material, thanks.

One of my consignors has a better example in my opinion:

http://www.classicwatch.com/graphics/rxvi0456.jpg

It's on my web site.

Hi it didn't make the book as it's just a round time-only watch that isn't chronometer. This model does however exist as a chronometer, and I've been trying to buy one for a few years now. When I do, that will go into the book.

Zaf