Twelve O'clock vs Precision Watch

Twelve O’clock is an app that helps track your watch accuracy easily in a realistic way. I can’t stress this enough: it’s “tracking”, not measuring instantaneous accuracy like a timegrapher device. It’s a manual and oldschool job but it brings so much fun. It reminds me of the old days when I had to synchronize my watch to the clock on the TV at 7pm every day. With Twelve O'clock you can: ** MANAGE YOUR WATCH COLLECTION * Add, edit, remove any item in a list of your watch collection * Include a nice wristshot of each watch ** KNOW YOUR WATCH ACCURACY * Simply add some checkpoints and let the app calculate the accuracy in *second per day* * A nice chart of the accuracy over the time ** LEARN MORE ABOUT HOROLOGY * Curated content for watch lovers (like me)

Is your mechanical watch running fast or slow? Find out in minutes. Precision Watch measures your watch's true daily accuracy by comparing it to atomic time — no expensive timegrapher and no trip to the watchmaker. Start a measurement, come back later, enter what your watch reads, and see exactly how many seconds per day your watch gains or loses. WHY PRECISION WATCH • Atomic-accurate — every measurement is referenced against an atomic clock • No microphone guesswork — a reliable, repeatable method that actually works • Track every watch — build your collection and follow each one's rate over time • Fast & beautiful — a clean, native experience made for watch lovers • Private — everything stays on your device, no account required HOW IT WORKS 1. Sync your watch to the on-screen atomic clock 2. Wait — from a few minutes to several hours, your choice 3. Enter what your watch reads now 4. Get your precise +/- seconds-per-day result Know when your watch truly needs a service — and when it doesn't. Stop guessing and start measuring. Precision Watch Pro unlocks unlimited saved measurements and your full watch collection. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/