Just a simple kitchen timer.
Manga exhibition. That's a pretty obvious clue. It's a pornography device. For example, when you type 58008 into it and turn it upside down it makes boobs appear on it.
Solved!
It's for calculating power levels in Dragon Ball Z.
It's over 5000!
I assume then the followup question would be why they'd be using a timer while drawing. If it's at a convention I could then assume they might do small commissions for people and use the timer to ensure they draw them quickly and don't spend too much time on each drawing.
Not at convention, more like that exhibition. There are no artist do commission.
The machine (timer) i show you are work tool of an famous artist. They put all his work tool in glass box for people to see.
I wonder if the artist was a fan of the pomodoro technique?
Maybe to bill them.
It is the same when developer use time tracker to do freelancer job. The job is billed by hours.
Most manga were releasing on a weekly basis. That’s a lot of work with short deadlines. He probably calculated the maximum amount of time per page and times himself in order to be able to finish on time.
Looks like a timer: https://office-japan.jp/en/products/タニタ-デジタルタイマー-ブラック-td415bk
Looks like a couple of pens to me.
