Vintage 1638 Calvin Klein Men's Chronograph Watch - Made In The USA

Vintage 1638 Calvin Klein Men's Chronograph Watch - Made In The USA   I don't know a whole lot about this watch so I'll describe it as best as I can. I'm not sure if it's a left hand or right hand. The Indices are goldtone in color but I'm not sure if they are real gold. It has a black dial face. It has 3 little dials on the face.  I'm not sure exactly what their function is. I think the band is stainless steel maybe. It has a chrome looking finish overall. I believe the band is made is China & is marked so. It has a stretchy linked band. The watch came from someone who retired out of the military & decided to go with a Fitbit instead. The back of the watch is pretty scratched but I think it says it's a 1638 model. This info is from Google AI:  The Calvin Klein 1638 military chronograph refers to a rugged yet sleek... Typically featuring an engraved model or reference number, it combines a tactical military-style dial with sophisticated quartz chronograph precision.  I put a new battery in the watch and I have kept an eye on it for about a month and a half. It seems to be keeping time okay if I wind it a little each day. It has a dial on the outside of the face that spins and marks 15 minutes increments. The face says Calvin Klein, Water resistant, Quartz, made is the USA. The back has the CK logo, says made in the USA, 3ATM water resistant & the model number. It has a fairly heavy weight to it too.  In my opinion, this is a nice vintage style men's watch!