A cheap Chinese electronic watch called for some reason "Montana".
Quite some history behind this watch, in a previous incarnation it was made in Hong Kong when Hong Kong was one of the pioneers and centers of electronic watch design, almost on a par with Japan in the late 1970s and the 1980. This watch was well known in the USSR.
But this version is a cheap Chinese version, whilst retaining the functionality of the original though, especially its famed "melodies" or simple tunes.
You can buy them say in Moscow for RUB 150 which is about USD 3 or 4.
The post Soviet Electronika-77 watch is said to be a clone of the Hong Kong predecessor of this watch lacking only its "hourly chime" and being more honest with the number of the melodies, see below.
Lots of things that are bad (cheap) about this watch: for starters, the bracelet is very poor, too small, made of like tin foil and dropping its push bars easily. The buttons are not very responsive on this particular specimen. Other than that everything works.
The number of "melodies" is not 16 as stated but 7 or 8.
The bird is aspiring to be the American eagle, no?
Easy to open the back.
All functions work.
In case someone is interested here is a manual to go with it, as it is typically sold without one.
Here is a video in Russian of the Electronika-77 which is a better made clone of the Montana but out of production already.