Info re 18 caret pocket watch 1126710

My wife thinks I am a scruffy farm boy ..so she buys me clothes.
She bought me a nice Harris tweed jacket and a waistcoat, so I thought I would like a pocket watch to go with it.
The local jeweller/watch shop told me that some good gold pocket watches were being sold for scrap, and I told my wife this, so she bought this watch for Christmas (for several times the scrap value!).

The dial is plane upright sans-serif numbers, and the hands are plain. The case is also plain, with no decoration or engraving.

I have tired to access the "date your IWC" site but I have not succeeded yet - does it work?

What does the full info service from IWC cost?

I was born in 1949 - was this watch made about then?

I did, eventually, get into the "date your IWC" applet ..and, apparently, it was made about 1946.

I have heart problems, and consequently I also have head problems - Vascular cognitive impairment, and now I influenza as well.

..but I found:
www.iwcforum.com/Catalogs/1940sFournitures/f6_p4c.jpg
and it seems that I have a 16 ruby Cal 97 H4. The outside diameter of the case is 45mm, and this would seem to tie up with the 37.8mm movement diameter.

The number 1126710 is on the underside of the inner back - would this be the movement number? would there be another number on the inside of the gold outer case?

How much more would IWC tell me, and how much would it cost?

Having now looked up Cal 97 on this site, I see that my watch seems identical to:
IWC TURLER CAL.97,
Except that mine says:
International watch co
Schaffhausen
on the dial.