In all of Horology the most controversial subject is which oil to use. Nations have gone to war over oil and it seems watchmakers and watch companies have as well. Below is a somewhat dated recommendation from Moebius, which might be 20 years or so old that we found in our company archives of advertisements to watchmakers we have made during the past 75 year history of the Otto Frei Company.
It is important to realize that these are just the views of Moebius a Swiss Company and the most of the movements makers are also Swiss Companies that you should find it no surprise that Swiss Watch Companies will recommend Swiss Oil instead of German, or American Oil. A lot of fine watch and clock oils come from these countries. In one of the many published books on watch repair the writer wrote, “That if you can afford all the wonderful types and grades of oils on the market, then buy them.” Otherwise, he said to get the finest quality lightweight watch oil you can get, along with heavier oil and good clock oil and make do with them.
In places where the parts have less friction use the light oil and where parts have more friction or pressure between them used a heavier oil or grease. The clock oil page is also interesting. A first time buyer should read all the pages of different oils and be assured that all the oils are first rate excellent oils approved and requested time after time over the years by watchmakers who stood behind their own work.
For high-quality wrist watches Moebius recommends the synthetic oil 9010 (SYNT-A-LUBE) for the pallet jewels, escapement wheel and the balance staff. Depending on the size of the caliber Moebius 9020 (SYNTA-VISCO-LUBE) or MICROGLISS D-5 is being used for the center wheel, the gear train and the barrel arbor.
For high-quality clocks such as alarm clocks, pendulum clocks and tower clocks Moebius recommends the synthetic oil 9020 (SYNTA-VISCO-LUBE) for the bearing of the escapement wheel, the teeth of the escapement wheel, the first wheel after the fly, the first and second wheel after the fly. (For the latter D-5 is also possible). For all other lubricating points in clock movements Moebius recommends D-5.
For small clocks Moebius recommends the quality 8000 for the bearing of the escapement wheel, the -teeth of the escapement wheel and the balance staff. For all remaining lubricating points Moebius recommends D-5 (eventually also 8141).
For standard quality clocks, especially for alarm clocks, pendulum clocks and tower clocks Moebius recommends 8030 for the bearing of the escapement wheel, the teeth of the escapement wheel, the first wheel after the escapement wheel and the fly. For all other lubricating points Moebius recommends D-5 (eventually also 8141).
For the quality and the standard movements Moebius recommends, depending on the size of the caliber, the grease 8200 or' 8300 for the spring and the winding mechanism
Moebius Quartz Oil is used in quartz analog watches and quartz movements for the rotor bearing, the click wheel and the gear train.
For quartz movements being mainly assembled with plastic components, Moebius recommends the synthetic oil 9024 for the bearings and for noise reduction 9027 into the teeth of the rotor and first wheel.
If silicone oils are being applied, Moebius recommends 1-3 for the bearing and 1-4 into the teeth of the rotor and first wheel. However, before lubricating, components have to be treated with FIXODROP BS - an anti-spreading agent.
Otto Frei, Watch Parts Since 1930
126 2nd St. Oakland, California 94607
Mailing Address: PO BOX 796, Oakland Ca. 94604
Freight Shipment Address: 119 3rd St. Oakland Ca. 94607 USA