Such simplicity those 1600 ....here's 2 of mine....

that I've acquired through my 1600 search. The one with the black dial has a case of 1.5m powered by a 1560 (isn't it too late for a 1560?) while the other one with the gold dial and hands (cannibalized from a TT 1601) has a 2.2m case powered by a hacking 1570. I'll soon be fitting a silver dial in place of this gold dial.