Looks like a caliber 12P, and could be anywhere from the 60's through the 80's. 12332 is the reference number, and 262798 is the case serial number. Since the reference number starts with 12, it's a caliber 12 series. Interesting dial. Are you looking to sell it or buy it? Many sellers list these for WAY above their value on eBay. They keep relisting and relisting because nobody buys them at the $2000+ asking price.
Thanks I am not a Piaget kinda parson . The dial looked interesting so I got inquisitive . So if I buy it it should not be more than $1500 or so .
I think you're safe at $1500, even up to $1800. If it had the crosshair dial on it we'd be chatting via PM now.