The Lemania 2310 to be precise. Proven the test of time, used by numerous top end brands as is, or in re-worked form, and not bad looking to boot - ninanet.net (thanks SteveG) 2nd place of the options listed would probably go to the 7750, but to my ey...
I don't have any particular technical expertise and only speak as a consumer. The El Primeros (4) have all been reliable and kept excellent time. They are also of a size (small and thin) to fit in watches which are 36-39mm, which is my favourite size. I k...