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Moonphase Watches: The Complete History & Collector's Guide - DuMarko

Moonphase Watches: The Complete History & Collector's Guide

  There is a moment, watching a moonphase watch, when the boundary between timekeeping and poetry dissolves entirely. A small disc rotates beneath a cut-out aperture, carrying a painted or...
The Complete Vintage Jaeger-LeCoultre Collector's Guide: Reverso, Memovox, Polaris & Beyond - DuMarko

The Complete Vintage Jaeger-LeCoultre Collector's Guide: Reverso, Memovox, Polaris & Beyond

  There is a phrase that follows Jaeger-LeCoultre everywhere in collecting circles: the watchmaker's watchmaker. It is often repeated and rarely examined. What it means, in practice, is that JLC...
The Watchmaker's Watchmaker: What Movements Did Jaeger-LeCoultre Supply to Other Brands? - DuMarko

The Watchmaker's Watchmaker: What Movements Did Jaeger-LeCoultre Supply to Other Brands?

  There is a question that stops most watch buyers in their tracks the first time they hear it: did you know that the Patek Philippe Nautilus, the Audemars Piguet...
Vintage Cartier Tank Alternatives: A Collector’s Guide to Rectangular Watches - DuMarko

Vintage Cartier Tank Alternatives: A Collector’s Guide to Rectangular Watches

In This Article The Art Deco Origins of Rectangular Watches Why Collectors Love Vintage Rectangular Watches The Golden Era of Rectangular Design Vintage Omega Rectangular Watches Vintage Longines Rectangular Watches...
Must de Cartier - the Art of the Dial - DuMarko

Must de Cartier - the Art of the Dial

In This Article The History of Les Must de Cartier The Must de Cartier Tank: Design & Construction Must de Cartier Dial Designs: The Complete Guide Must de Cartier Dial...
How to Service Vintage Watches: Full Expert Guide - DuMarko

How to Service Vintage Watches: Full Expert Guide

In This Article What Is Vintage Watch Servicing? Why Servicing Vintage Watches Matters How Often Should You Service Vintage Watches? Full Step-by-Step Breakdown Essential Things to Know Before Servicing Servicing...
The History of Vostok Amphibia: From Soviet Engineering to Vintage Legend - DuMarko

The History of Vostok Amphibia: From Soviet Engineering to Vintage Legend

The Vostok Amphibia isn’t just a dive watch — it’s a symbol of Soviet ingenuity, rugged reliability, and affordable mechanical craftsmanship. From its origins in the depths of the Cold War...
How to Tell a Fake vs. Real Cartier Watch - DuMarko

How to Tell a Fake vs. Real Cartier Watch

Why Cartier Watches Are So Frequently Counterfeited The Global Prestige of Cartier Cartier isn’t just a watch brand. It’s royalty in horology. Kings wore it. Celebrities wear it. Collectors chase...
How to Use Vintage Chronograph: Tachymeter and Telemeter Scales - DuMarko

How to Use Vintage Chronograph: Tachymeter and Telemeter Scales

Vintage chronographs are more than elegant mechanical watches. They are functional instruments designed to measure speed, distance, and elapsed time with remarkable precision—long before digital devices existed. Understanding how to use...
How to Read Triple Calendar: explained step by step

How to Read Triple Calendar: explained step by step

Understanding the Triple Calendar Complication A triple calendar is one of those complications that sounds intimidating at first, but once you break it down, it becomes surprisingly logical. Before diving...
What Should You Check Before Buying a Vintage Watch Online? Essential Guide + 17 Expert Checks - DuMarko

What Should You Check Before Buying a Vintage Watch Online? Essential Guide + 17 Expert Checks

Introduction to Buying a Vintage Watch Online Buying a vintage watch online can feel like stepping into a treasure hunt. There’s excitement, mystery, and—let’s be honest—a bit of risk. Still,...
Guide to Swiss Watch Hallmarks - DuMarko

Guide to Swiss Watch Hallmarks

  Turn a vintage Swiss watch over and the real clues are rarely on display. More often, they're hidden inside the case — pressed quietly into the inner case back,...