I'm afraid I don't know. It's had since I've had it. The previous owner stated he wore it everyday and have never had it serviced.
It has not affected the watches time keeping, as far as I can tell anyway.
A forum community dedicated to watch owners and enthusiasts. Come join the discussion about watch collections, displays, watch winders, accessories, classifieds, and more! We welcome all manufacturers including Casio G-Shock, OMEGA, Rolex, Breitling, Rolex and Tudor, Seiko, Grand Seiko and others.