Movement Identification and Advice

AnotherAussie

Hello good people of OF

Is anyone able to identify this movement? Seller claims unmarked but I daresay someone with a keen eye will be able to identify.

Additionally, regarding the staining on the movement, does it look to be superficial (and can be cleaned) or does it appear to be corrosion? Would you guys take the punt?

As always, thank you for your time in advance. I appreciate the input.

AnotherAussie

Thanks @JimInOz, you are a legend. I presume you are a fellow Aussie?

@Dan S I'm wary to share. The last time I shared a watch it was nabbed from right under my nose!

AnotherAussie

Thanks @JimInOz, you are a legend. I presume you are a fellow Aussie?............................

Dan S

Based on what I'm seeing, I going to guess it is a Chronographe Suisse variant.

AnotherAussie

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@Dan S I'm wary to share. The last time I shared a watch it was nabbed from right under my nose!

AnotherAussie

Appreciate the heads up @padders and @Dan S. From the images provided, there didn't seem to be an inner caseback. Fingers crossed it does come with one and was just omitted from the photos. Excuse my naivety (I am very new to all this), but until you mentioned it, I didnt even consider there were male and female bars - I think I will reserve this fitting for a watchmaker. Do either of you two own a CS per chance, or do you tend to steer clear for the reasons noted above?

Last one from me - just out of curiosity, for this particular watch, how much would you you expect to pay? For reference, I paid just under $900 USD.

As always I appreciate the responses - I am learning a tremendous amount.