Know from last time poked around inside Big Bertha the timer and perhaps electronic module have French wording.
However you can see, well you see the timer motor pictured above will accept 50hz or 60hz. Leaving aside what if anything governs change in speed that would come from 10% faster frequency, motor is clearly labeled 220v.
One knows for fact nothing in this washer runs on 220v; this though power requirements state 120v/220v. Aside from powering both legs of heater, the 220v does nothing else. Pump is 120v (had it swapped out and kept the old), and the muet (motor) can be wired to run on 220v, 120v, etc.... it is all the same motor.
Of course this washer has no transformer (why would it?), so don't believe a 220v timer motor will work, It it didn't mind what voltage was received it would state range such as 120v-220v....