Watch Water Resistance: Read the Rating Before You Swim
How to interpret a water-resistance label and ask for evidence that applies to the actual watch.
Read articleTHE READING ROOM
Watch Guides, Reviews & Comparisons
Understand watch functions, read practical ownership guides and explore licensed photo comparisons from the PureTime archive. Each research guide links to its technical references.
Mechanical Watch Accuracy: A Simple Seven-Day Log
Measure daily gain or loss consistently, and distinguish a laboratory rating from your wearing results.
Read articleGMT Watches: Reading the 24-Hour Hand and a Second Time Zone
Understand a GMT display with a worked example, then check how the actual movement adjusts.
Read articleChronograph Basics: Start, Stop and Read the Registers
Learn what stopwatch hands measure and what to check before operating an unfamiliar chronograph.
Read articleAutomatic Watches: Power Reserve and Restarting After Storage
Understand the difference between stored running time and timekeeping accuracy before comparing movements.
Read articleMaster Chronometer: What the Certification Actually Covers
Separate documented certification from dial wording and understand what the METAS programme tests.
Read articleResearch guides are original editorial summaries with linked references. PureTime archive articles and images are reproduced with permission and retain their original dates. Historical specifications and prices describe the source article at publication.
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