For sale is this vintage Casio ProTrek Ley PRL-20BLJ limited edition BirdLife International Collaboration in red from 1997 made in Japan. ProTrek is the professional line by Casio for outdoor activities. This PRL-20 model houses the 1617 module which features: \- 24h or AM/PM time \- Month \- Date \- Year  \- Day of the week \- Dual screen with dot matrix \- Temperature sensor \- Air pressure sensor (in hPa/mb) \- Daily alarm \- Stopwatch chronograph with split time \- Barometric pressure trend graph (predicts weather) \- Altitude readings/graph \- 50x recordable/recallable data slots \- Altitude alarm (chimes when you reach a desired altitude)-100m water resistance \- Press-and-hold auto EL backlight with BirdLife logo  \- The leather band has an embroidered BirdLife International logo and can be replaced with any 20mm strap due to the lug extenders. This watch was meant to be used by hikers, mountain climbers, golfers etc when you wanted to check the upcoming weather trend and to see differences in altitude to be recorded and recalled at a later date.  Bought in Japan. Condition is amazing for its age with the case being in almost perfect condition minimal wear basically unnoticeable. The leather band is more worn and does not appear to go larger than roughly 17cm but as I said above, you can easily swap out the strap with any 20mm strap very easily without tools because of the lug extenders. Dimensions are 45mm (including sensor), 40mm bezel, 45mm lug to lug, 11mm thickness. As this is a vintage product we cannot guarantee its water resistance. $80 plus fees shipped