IT has always been a matter of surprise that the Americans can produce their well-known eight-day clocks in such large quantities, so uniformly good for ordinary purposes, and at such very moderate ...

You have to be pretty ambitious to modify a clock to run for 50 years on a single battery. You also should probably be pretty young if you think you’re going to verify your power estimates, at least ...

This calendar clock, which sold for $5,100 at auction, is said to correct for the days of each month, even in leap years. Do you have a new calendar for the year? With a clock like this one, made in ...

If you’re fortunate enough to own any version of Audemars Piguet’s Perpetual Calendar Royal Oak, no one wants to hear you complain about a damn thing. However, the immensely complex complication is ...

At Hackaday, it is always clock time, and clock time is a great time to check in with [shiura], whose 3D Printed Perpetual Calendar Clock is now at Version 2. A 3D printed calendar clock, well, no big ...