I remember reading a post on Nikonians a few years ago about an F5 that was in for a CLA at Nikon Germany. It had 1.2 million shutter cycles.
Gary in SE Michigan, USA. Nikonians membership - My most important photographic investment, after the camera. D4, D810, D300 (720nm IR conversion), D90, F6, FM3a (black), FM2n (chrome) YashicaMat 124, Graflex Speed Graphic 4x5 My Nikonians Gallery & Our Chapter Gallery