Decimal Watch of 5 hours. The hour hand makes 2 turns every day making 10 hours a day but displaying only 5 like Sexagesimal 12h clocks. Each hour has 100 minutes and each minute has 100 seconds.
The bright version consumes quite battery but the dim version is semi battery friendly.
Please, download the "Decimal Clock" Ten Hour Studios app for the tap action to work.
Uploaded on 20 Mar 2021