First, I really like that your game has audio options. It's a detail, but the music not blasting away your ears can make a huge difference.
You also did a great job at the visual effects when you rewind time.
My biggest problem was the controls, though. Not that they are unintuitive, but how they felt. Moving felt somewhat cumbersome, which doesn't fit the puzzles which require precise movement.
The game also felt a bit laggy. This could just have been to the weird movement of the pocket watch, though.
Also sometimes I couldn't interact with buttons, for example, after freezing the player in time.
I only played until there was this lava level with the moving platforms. It was too frustrating because the controls didn't feel that smooth. I wasn't really trying to figure out how to solve the puzzle but rather figuring out how to work with the controls. That falling into the lava kills you made it even more frustrating, especially since it would make more sense if you would rewind in time to avoid dying.
In a good puzzle game, you want to solve puzzles effortlessly. You know these puzzles that seem so difficult until you figure out the trick, and it suddenly becomes a cakewalk?
I couldn't comment much on the puzzle design, but I hope my feedback was helpful nonetheless.