The 31st day back on my wrist since tune-up. It hasn鈥檛 been allowed to stop, nor has it been re-set. Worn 24/7 since March 11. This morning, 3 seconds slow! It鈥檚 widest variation in 31 days! It is 34-years old, this year. Pretty good performance for a vintage watch, I鈥檇 say.