A 1675 with box and paper won't come cheap. A 16710, yes, you will bump into one occasionally.
If you can bring yourself to pay the extra money for a full set, then wait, scout around. But not easy to find locally.
There are seller overseas that offer full set. But with the crazy exchange rate, be prepared for at least RM 22k (if i remember the price correctly)
Also, more importantly, the dial, the end links, bezel.. whether it matches the period,, blah blah blah. Vintage is a minefield..