Casio Men's PRO Trek Stainless Steel Quartz Watch with Resin Strap, Black, 23.5 (Model: PRW-6600Y-1A9CR)

Q: What is the difference between this watch (prw-6600y-2cr) and the prg-600yb-2cr? there is a significant price difference on amazon.

The prw-6600y-2cr has atomic time keeping (multiband-6). The prg-600yb-2cr does not have atomic time keeping.

Q: Why is this watch now $100 more than it was a month ago??

The price on this watch fluctuates. I don't know why amazon does this but likely to offset revolving discounts on other products.

Q: Where is this watch made? Is it made in China?

Casio Products are manufactured in factories located in Japan, China, Thailand, and Malaysia according to factory specifications.

Q: How do I know this watch is a genuine Protrek?

I would think that you’d be getting the watch with all the Casio paperwork and guarantee. I would doubt there’d be a way someone could supply all the Casio paperwork and packaging and enclose a counterfeit watch. I love mine. Also, you could probably call Casio and they could guarantee authenticity.