Mastering the Mechanical Watch
Like Duolingo, but for Mastering the Mechanical Watch. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.
For the part of you with thirty open tabs that never became anything.
Free during early access · No credit card · iPhone & Android

You've tried the other tabs
Thirty open tabs. Four facts you actually kept.
You watched. You nodded. By Sunday it was gone.
One answer, then back to scrolling.
Eight weeks. You meant to finish. You didn't.
Tomo turns Mastering the Mechanical Watch into a game you actually finish. Levels, streaks, and quick quizzes that make it stick. Five minutes a day.
Where Mastering the Mechanical Watch takes you
Go beyond the battery and discover the tiny, ticking engine on your wrist. Learn how to set, wind, and care for a masterpiece of engineering that runs entirely on springs and gears.
- 1
Getting Your Watch Running
- The Magic of the Mainspring
- How to Wind Without Overdoing It
- Setting the Time and Date Safely
- Reading the Dial and Sub-dials
- 2
Listening to the Heartbeat
- Why Watches Tick and Tock
- The Balance Wheel: Your Watch's Pendulum
- How the Escapement Releases Energy
- Adjusting for Accuracy
- The Role of Tiny Jewels
- What Makes a Watch 'Automatic'?
- 3
Choosing and Caring for Your Timepiece
- Manual vs. Automatic Movements
- Understanding Water Resistance
- When to Visit a Watchmaker
- 4
The Engineering Under the Hood
- The Gear Train: Transferring Power
- How Gears Change Speed for Hands
- The Science of Hairsprings
- Managing Friction and Gravity
- Complications: Adding Calendars and Stopwatches
4 sections · 18 units · 54 levels. Built to play, not to enroll.
Here's what playing it feels like
A real question from this course. Take your best guess.
If a mechanical watch has no battery or solar panel, what physical component holds the energy that keeps it ticking?
Get it right to open this lesson and 53 more in the app.
You pick the voice
Mastering the Mechanical Watch is taught in the The Professor style: clear, structured, thorough. Want a different feel? In the app you can spin up the same topic in any of Tomo's teaching styles. Same facts, totally different vibe.
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Start Mastering the Mechanical Watch today.
Download Tomo, search Mastering the Mechanical Watch, and play your first lesson in under a minute.