I am pretty sure I have only seen one other of these in the past 7 years sence I started collecting watches but having been a sailor and boater for many years I HAD to have one. Well, here it is. 40+mm stainless case and R72 movement. For those who are not familiar with these, the 9 sub register reads the high and low tides. A few small ding and scratches but original accept for the strap (has original buckle). The prior owner found it in a thrift shop with several other valuable watches in 1995. No, I could not even ask him what he paid for it then! Craig
PS - I thought the back was a snap on but it won't budge so it might be a drop in case. If anyone knows, let me know. Thanks