Top critical review
Watch stop working after use
Reviewed in the United States on August 23, 2020
Warnings! don’t use this oil on a vintage watch, the watch will stop working afterwards, I applied just a drop of this oil on my vintage gruen watch, it was running perfectly fine, but a service was probably due, so until I am able to get the watch in service, I figure I will just oil it up with just one drop of oil, big mistake, as soon as the drop of oil hit the movement, the watch stop ticking, and have not work since.