Seiko Metronome Item: SQ50V
Simple to use, dependable metronome with a good percussive, non-beeping sound. The Seiko SQ50 features a large dial to select tempo, two unique sounds as well as visual-flash, volume control, two reference tones: A-440 & B flat, and a tempo range 40-208; uses 9 volt battery
It's a great and simple metronome, using probably since 2007 at least. Highly recommended!
I own two of these now. It's great. Loud, flexible with two different tone settings. Students like it too....retro!!