This Type of Watch... Works a Little Bit Different | Watchfinder & Co.

If you’ve ever seen a movement without it’s watch, and it’s got a date, you’ll know that the display consists of a large disc with the numbers 1–31 written on it that incrementally rotates every 24 hours. Fairly simple to understand, and also a little tricky to see—hence the big date complication. But how on Earth does the big date actually work?

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