[quote=@Dervish]
Best I figured it out to be and equalled it out for my own games is that Altmer can live to be about 1,000 naturally due to dem Slytherin like Aldmer purity thing, all the other Mer can ambitiously make it to around 200-250.
[/quote]

Altmers can technically live up to a thousand years, just like people on earth can technically live up to 120. It is extremely unlikely due to factors such as accidents, disease and malnutrition.