Anyone in this forum could advise me of reputed watch repairer that would know how to repair a Seiko Sea Lion M88? I believe the main spring is gone, and I have no idea if spares are still available for this kind of watch, a self winding mechanical, week-dater. Mine was bought new in Singapore, at the old Changi Village in 1968. It has given me sterling service every day since it was bought as I wore it daily, but now 50-years old. The spring was replaced once before @ year 2000. But the gentleman who did it, an elderly craftsman, has retired and his workshop is no more. Any advice is appreciated. I live in the UK, county Hampshire.