I am not knowledgeable about vintage watches but...
I have this very nice 18k gold swiss chrono. It is quite old but the mechanism is still in good condition. Unfortunately when I removed the strap one of the pins broke off (see pictures). What can I do ? Let it be repaired by a goldsmith: and how ? Weld on a new pin or let him saw of the second pin and drill holes so I can put in regular spring bars ? The old way of attaching does not seem to be a very safe way to attach a strap and certainly not an easy one.
The brand of this watch is a mistery. Look at the mechanism and the number on the back plate, in gold too. At 6 o'clock I think is writte "swiss made". Will it be worth the repair, a goldsmith's work could be expensive.
The dial is in excellent condition, only the chrono does not reset to zero but it works.
Your help is appreciated, thanks