One of the visual changes we were 'treated' to in Android 4.2 when it first dropped, was a re-designed digital clock widget. I say 'treated' because its design is a point of contention for many. Personally, I don't mind it, but many others have a vastly differing opinion. The mixture of bold and regular font doesn't cut it for some people, especially when compared to the relative simplicity of the light Roboto font we've all come to know and love.
But, this is Android, so there's usually a way to change these things. This ones called Fixed 4.2 Clock Widget, and is available for free in the Google Play Store. And, it does exactly what it says on the tin. You can alter the font to your liking, and you can go all bold if that's your thing. But, it gives us a simple way to bring back the clock widget of old, and it's also compatible with the Android 4.2 lockscreen. Tapping on the clock widget also takes you into the stock clock app as you would hope.
And, aside from mentioning that it also displays your alarm times -- as the stock widget also does -- that's about it. If you like it enough, there's a donate version also available, but all the features are available in the free version.