what are the difference between M and V, which i saw on other forums.
M and V are just serial numbers and they give a
ROUGH estimate on when the case was stamped and not when the watch was assembled or sold. for the 116710, there shouldn't be any differences mechanically or physically.
Rolex ADs are actually
NOT allowed to discount or sell above MSRP. but there is quite more room for discounts on non-sport models and the sports models in two-tone or solid gold. discounts for SS sport models may be harder to get.
try a grey dealer if you want a better price.