To Understand Watches, Start with the Movement

Anyone who wants to truly understand watches must first understand the movement. Case shapes — round, square, or tonneau — and functions ranging from simple three-hand displays to perpetual calendars are merely the “skin.” The movement is the heart that makes everything possible.

When people ask how to quickly become knowledgeable about watches, the first advice is to learn the brands. The second — and more important — is to study what movement is inside the watch.

The Importance of the Base Movement

An interesting fact: a mid-range Swiss three-hand watch may use the very same base movement as a high-end chronograph, moonphase, or even perpetual calendar. The difference lies in how the higher-end brand modifies the base caliber — adding modules, altering components, and refining finishing.

A base movement typically offers simple or single functions. It can be installed directly into a case for a straightforward watch, or it can serve as a flexible platform for additional complications and creative layouts.

In fact, as early as two or three centuries ago, during the pocket watch era, watchmakers were already producing variations based on the same basic architecture but with different functional executions.

Industrialization and the Rise of Specialized Movement Makers

After World War II, as watchmaking became increasingly industrialized, fewer brands were able to manufacture complete movements independently. Many turned to specialized movement manufacturers, purchasing finished base movements and modifying them before casing.

Without base movement suppliers, most Swiss and German brands would struggle to produce watches at all.

ETA – The Backbone of Modern Swiss Watchmaking

The Swatch Group, especially its subsidiary ETA, has long supplied the majority of Swiss brands with movements and components. Although ETA has repeatedly announced plans to limit external supply, commercial reality has kept its calibers widely available.

Two of the most commonly used movements are the ETA 2892 and ETA 7750. Even prestigious brands have used them as foundations for entry-level models.

As case sizes increased over the years, larger pocket-watch-style movements regained popularity. The improved ETA 6497/6498, relaunched in 1994, has become a favorite for oversized watches. While not ultra-luxury in origin, watches built around it are rarely inexpensive.

High-End and Rare Movements as Status Symbols

For higher-tier brands, rarer calibers symbolize prestige.

• The FP 1185 chronograph movement (formerly from Frédéric Piguet) was once used by Patek Philippe and Vacheron Constantin. It is no longer sold externally and is now associated with high-end vintage prestige.
• Jaeger-LeCoultre developed the ultra-thin Caliber 849 in 1964, still in use today. Its slim architecture allows exploration of additional complications while maintaining elegance.
• Piaget introduced the ultra-thin 430P in 1997, offering precision and impressive power reserve. Many Richemont Group high-end brands adopted it.
• Zenith’s legendary El Primero remains one of the most famous high-frequency chronograph movements. Its high beat rate enhances precision and has served as a foundation for chronographs, perpetual calendars, and even tourbillons. Today, it is largely reserved for LVMH brands, making it relatively exclusive.

In-House Movements: Prestige vs. Performance

Many brands proudly advertise “in-house movements.” However, aside from giants like Rolex or Patek Philippe, in-house does not automatically guarantee superior performance. Often, such watches are priced significantly higher, while actual functional advantages may be marginal.

For watch enthusiasts, understanding these nuances becomes a way to demonstrate true knowledge. What may begin as casual curiosity can, over time, develop into genuine expertise.