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How to Service Vintage Watches: Full Expert Guide - DuMarko

How to Service Vintage Watches: Full Expert Guide

What Is Vintage Watch Servicing? A Complete Definition Vintage watch servicing, sometimes called overhaul or revision, is a detailed mechanical restoration process performed on timepieces that are often decades —...
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

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

Introduction 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,...
How to Take Care of a Vintage Watch: A Complete Guide for Collectors and Enthusiasts - DuMarko

How to Take Care of a Vintage Watch: A Complete Guide for Collectors and Enthusiasts

Vintage watches are more than simple timekeeping instruments—they are mechanical works of art, historical artifacts, and often valuable investments. Whether you own a classic Rolex, Omega, Longines, or a lesser-known...
The Smallest Watch Mechanism Ever Existed - DuMarko

The Smallest Watch Mechanism Ever Existed

Introduction When discussing the smallest watch mechanism ever created, one name inevitably rises above all others: Jaeger-LeCoultre 101. In a world dominated by bold men’s swiss watches, large pocket watch...
Classification of Watch Dial Markers: Complete Guide - DuMarko

Classification of Watch Dial Markers: Complete Guide

In the world of Swiss watches, small details matter. One of these details is the hour markers on the dial - the shapes or symbols that show the hours. They...
Top 10 Most Expensive Watches Sold at Phillips Auction in 2025 - DuMarko

Top 10 Most Expensive Watches Sold at Phillips Auction in 2025

The year 2025 turned out to be a blockbuster for vintage wristwatch auctions worldwide. Major houses like Phillips, Sotheby’s, and Christie’s saw passionate bidding wars drive sky-high hammer prices and...
The Ultimate Guide to Rectangular and Square Watches: Brands, History, and Style - DuMarko

The Ultimate Guide to Rectangular and Square Watches: Brands, History, and Style

In the world of horology, few designs create as much visual impact as the square watch and the elegantly elongated rectangle watch. Their sharp lines, perfect symmetry, and architectural presence...