# Precision Watch: Accuracy

> Mechanical watch rate tracker

Canonical page: [https://chrome-stats.com/d/id6478533884](https://chrome-stats.com/d/id6478533884)

## Overview

- **ID:** `id6478533884`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Louis Marion
- **Category:** Utilities
- **Rating:** 4.50 / 5 (2 ratings)
- **Version:** 2.2.1
- **Last updated:** 2026-06-25
- **First published:** 2024-03-04
- **Size:** 72 MB
- **Data as of:** 2026-09-21
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/precision-watch-accuracy/id6478533884)
- **Privacy policy:** [https://docs.google.com/document/d/1jdHs1e8jN6W2E3nGN2YLyzJhqE2p0XCl0Ua0r5eMaLo/edit?usp=sharing](https://docs.google.com/document/d/1jdHs1e8jN6W2E3nGN2YLyzJhqE2p0XCl0Ua0r5eMaLo/edit?usp=sharing)

## Description

Measure your watch's true daily accuracy in minutes — no watchmaker needed. See if it runs fast or slow, and track your whole collection over time.

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/

## Rankings

- #696,182 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id6478533884)