Hi everyone,
Thank you all for your help.
I ended up getting the watch in the end - a combination of being able to talk the seller down to parting with it for £100, it being in a good condition, and having seen the movement inside which is almost spotless. I'm glad to report it is keeping good time (hasn't lost a second in 24 hours - I guess I'll get a better idea over the coming weeks).
I've attached some pictures just for reference (sorry none of the movement)
View attachment 333096
View attachment 333097
View attachment 333098
View attachment 333100
View attachment 333101
Click to expand...