As used by the most sniper teams to measure altitude and barometric pressure. Essential if you are hunting or shooting at altitude. It has a cracking night time back light also.
https://www.suunto.com/en-gb/Products/s ... All-Black/
This one is my own, but if upgraded my shooting watch. It has a slight scuffing on the top right corner of the bezel, quite common in these watches but this one is very minimal and overall a tidy watch.
£75 + P&P