If you get another watch, it doesn't add a lot of utility to your life. You can only enjoy one or two watches a day.
But with this clock, if you put it in your office, you can enjoy it almost every day! Plus! It's a tax write off! It's a business expenditure! You're making your office a beautiful place so you're more productive and you need some art to show clients you're a human being and not just a corporate robot!
You get a lot more utility with a clock!
(All of the aforementioned is said as a joke - although - like every good joke, there is some truth there too!)