In the memory of my grandfather

I took the liberty to contact you because i now that you are the most reliable collectivity,with profesionals skills in this field and the most passionate collectors in the world.
My name is Adrian-Nicolae Sandu,44 years old,i am from the village Valu lui Traian,Dumitru Olariu street,Nr 87,judet Constanta,Romania and i have an IWC gold wristwatch from my grandfather, which has the following number,1036364, inscripted on the mechanism and the logo"INTERNATIONAL WATCH Co", and inside the case the following numbers:56/140/0585/1071952.The case has 32 mm in diameter(without crown),it has 6 mm in height and seconds or minutes are at 6.
I would be very grateful to all if you could help me with the identification and the evaluation of this watch(because here in Romania even the authorized dealer of IWC-GALT dosen"t care about vintage timepieces) for the reasons that i have to explain in Part Two.