GongTimer

GongTimer lets you define your own timer and play a gong sound at the beginning and at the end. It also counts automatically how many rounds you ran the timer.

Pausing and resuming the rounds is also supported, You have the ability to set different alarm sounds. You can see the running timer in the status bar of your Mac.

you define a timer, and reminds you with a nice gong sound. It also automatically counts how many rounds you ran the timer.