It was my understanding that Uwatec Dive timers were fresh water calibrated, as opposed to most dive computers.
I always used to get slightly different readings from the D6 with the dive timer being about 0.5m deeper in fresh water and I was led to believe this was the reason - Made sense
However I have noticed that the my Vytec DS usually gives the same reading as my dive timer so now I'm unsure what to believe.
Happy to be of very little help
