

when RD first launched La Monegasque, they made two limited edition chrono pieces in precious metal w/ RD78 movement. They were priced at a small premium to the RD680 based chronograph in similar precious metal. IMHO, they were a great bargain given the movement finishing.
This is one of them. I believe the reference number should start w/ MG4478.

Here's a quick post for the other one by fellow owner: