The point is reinforced with the different size of bands for the two differently sized bodies.
Just like most clothes, the Apple Watch bands will come in three different sizes: S, M, and L.
Looking at the band sizes, an interesting observation can be made: the modern buckle, for instance, is listed in feminine wrist sizes, meaning that Apple does not envision men wearing it. It's not impossible - men with smaller wrists might see it fit, but the general sentiment is that it's for women.
Most other bands are unisex: the leather loop, the classic buckle, the link bracelet, the sports band, and the Milanese loop. To get a better understanding of the sizes, take a look below.