Another Turtle has landed on the bench. Problems described were very stiff winding (time setting) and low power reserve. I started discussing it here, but figured a thread of it's own was warranted. A nice watch, showing some wear but overall in good condition. Front view. Back view (serial blocked because everyone does it ). Movement view. Thought I'd add this from the other thread so it's all in one place: I'm now looking at a 6309 with poor power reserve. When manually wound it will run for 48 hours. I also noticed manual winding (via ratchet screw) was stiffer than normal and the bridle slip was very noticeable. I put the autowinder back on and while it rotated freely from "unwound" it quickly tightened up and rotating the watch as a wearer would resulted in practically no movement of the rotor. My first suspect is an overly strong mainspring so I'll investigate that. Other than that, any ideas? From Al: Jim - Seikos are very efficient winders, so barring any defect in the automatic winding section, then a strong mainspring is certainly a possibility. You noted it felt heavy to wind, so it's either that or something else is binding...let us know what you find when you get it apart.