460-75-202

Keystone mainspring lubricant will last longer and perform better than any other product for the demanding requirements of lubricating clock and instrument mainsprings.  Keystone’s outstanding film strength will allow smooth power transmission for years without binding, rusting or galling.  It’s adhesion property makes sure it stays where it’s put.  Keystone lubricant contains no graphite, moly or sulphur to contaminate movements.  Choose from medium (for clocks) or light (for watches and small clocks). 8 oz. Bottle.