Most part houses O Frei, etc. carry a lower priced bulk lubricant that is a useful oil for all round use. Mine was "42364" from Otto Frei. It is similar to say Mobius 9020. It came in a bottle that had probably a half ounce and was cheap. They called it "chronograph oil" The tiny bottles of Mobius 9010 etc are really expensive and you will not be in a spot to spend that kind of money yet. Whatever you do, do not buy vintage oils and try and use them. The synthetics are what you want and fresh synthetics. Vintage oils contain animal products and are just junk in comparison.