This is a vintage mid-90s HRM w/ a battery replacement and chest strap replacement in 9/2002. I haven't used it since as I upgraded while it was with polar. This was the top of the line model and includes a 3 line display w/ 44 split/lap times, recovery timer, programable training zone. The watch and chest strap are in excellent condition and come in the original hardshell case w/ all instructions and batter replacement receipt from polar.