The CASIO F-91W is a digital wristwatch with alarm and chronograph functions, featuring a transparent band. - Brand: CASIO - Model: F-91W - Functions: Alarm, Chronograph - Water Resistance: WR (Water Resistant) Thank you for viewing. I bought this about 3 months ago intending to use it in the summer, but it has been stored unused. There is no box or instruction manual. Purchase price: 3300 yen