Ultra Rare Seiko Digital calibre S610-4010, August 1991 edition, normally 5 functions : Time, Chrono, Timer, Alarm and illuminator very bright, with big orange mode button, can keep 30 lap memory and can recall, water resist 10 bar equal 100 meters, ready for swimming in the pool.
mint condition, acrylic glass without scrath, rubber strap and buckle genuine seiko.