Knowledge

In-Depth: The Rolex Oyster Perpetual GMT-Master II, Materials and Mechanisms

Perfecting the travel watch.

Chronicles of Precision: The Quest for Equation of Time

A centuries-long pursuit.

In-Depth: Alfred Helwig’s Flying Tourbillon in Wrist- and Pocket Watches

A history of the invention by Dr Helmut Crott.

In-Depth: A Dive Into the Oyster Perpetual Rolex Deepsea

The secrets to record-setting depths.

Insight: The Advantages of a Vertical Clutch Chronograph

The efficient approach.

A Collector’s Perspective: The Cartier Crash

Fulfilling a special-order dream.

Explained: The Vertical Clutch of a Chronograph

The modern and efficient approach.

Explained: The Horizontal Clutch of a Chronograph

The classic, planar approach.

In-Depth: The Prestige and Patents of the Rolex Oyster Perpetual Day-Date

Instantaneously ingenious.

Purpose Built: The Sinn EZM 12

A unique watch for emergency medics.
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