I wonder how long it will take Apple to breeze past the TOTAL android watch SHIPMENTS of 720k (for 2014) this April - An hour ?
First off, you have to be more exact about what you're asking. Watches based on Android, or used with Android?
There were 720K Android Wear sales (it's the same as shipments to analysts) starting from mid-year, with sales constrained by supply.
But there were plenty of non-AW watches sold as well. E.g. Samsung Gear models running Tizen, but only compatible with Android phones.
Altogether, it looks like there could have been about 2.5 - 3 million smartwatches sold to Android owners during the entire year. That's about twice the number sold in 2013, which makes sense.
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As for the Apple Watch, predictions are all over the place.
Analysts have predicted anywhere from 10 - 60 million Apple Watches sold to iPhone owners in its first year. About 1 - 5 million a month.
According to the WSJ, Apple themselves have ordered 5 - 6 million for the initial release quarter, which is an expectation of 1.5 - 2 million a month.
That seems reasonable, since that's similar to how the iPad did in its first quarter, and they have a similarity in price.