Japanese Engineering Marvel: The LEGO Clock That Actually Keeps Time

The Story
A Japanese influencer and master builder has gone viral for creating a fully functional mechanical clock entirely out of LEGO Technic parts. Far from a simple toy, the intricate mechanism utilizes a gravity-driven pendulum and custom-built escapement to track time with genuine precision.

Why It's Impressive

The Stats:
The clock reportedly loses just 40 seconds every 12 hours (roughly 1 minute and 20 seconds per day).

The Engineering Hurdle:
Achieving this accuracy with LEGO is nearly impossible because ABS plastic gears suffer from "hysteresis" (flexibility) and high friction compared to brass or steel.

Context:
While a Rolex is accurate to +/- 2 seconds a day, this pile of plastic bricks performs on par with many entry-level vintage mechanical clocks, proving that high-end engineering principles work even with toy blocks.

Credit: @ClobalWatchClub

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