One of two on the wrist(s) today. My 38-year old Rolex Oyster Date-Just which was returned to service March 11, and as of today, has gained 19 seconds in 60 days! That’s about 1/3 of a seconds per day! The second watch is my manual wind Gruen Veri-Thin Precision from circa 1960. I am the second owner. The first owner was the late managing director for Gruen in Canada when Gruen folded. He never wore it, and I rarely wear it. He became managing director for Rolex in Canada.