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Close-up of intricate, exposed gears and mechanisms inside a luxury Swiss watch movement.
Garrett Silverstein
26 Jul 2025
July 28, 2025

Rolex 722

The Rolex Caliber 722 (R72B) is a manual-wind column-wheel chronograph based on the Valjoux 72. As the successor to the initial R72, it...
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Close-up of intricate watch movement showing gears, cogs, and metallic components in a circular arrangement.
Garrett Silverstein
26 Jul 2025
July 28, 2025

Rolex 722-1

The Rolex Caliber 722-1 is a manual-wind column-wheel chronograph, representing a significant Rolex-modified version of the Valjoux 72....
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Close-up of an intricate mechanical watch movement with visible gears and metal components.
Garrett Silverstein
26 Jul 2025
August 2, 2025

Rolex 3155

A highly reliable, COSC-certified automatic movement that powered the 36mm Rolex Day-Date ("President") for over 30 years. Its signatur...
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Black and white diagram of a mechanical clutch assembly, partially cut away to show internal components.
Garrett Silverstein
26 Jul 2025
August 2, 2025

Rolex 3175

A self-winding mechanical movement that pioneered the independent hour hand functionality in Rolex's GMT line. Exclusively used in the ...
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Close-up of a mechanical watch movement showing gears, screws, and intricate metal components.
Garrett Silverstein
26 Jul 2025
August 2, 2025

Rolex 3185

The Rolex Caliber 3185 is a self-winding mechanical movement known for its robustness and reliability. It famously powered the Rolex GM...
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Close-up of a mechanical watch movement with gears and metal components visible.
Garrett Silverstein
26 Jul 2025
August 3, 2025

Rolex 3035

A landmark movement that established the technical foundation for modern Rolex. Introduced in 1977, it was the first Rolex caliber to f...
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Close-up of a mechanical watch movement with visible gears and intricate metal components.
Garrett Silverstein
26 Jul 2025
August 3, 2025

Rolex 3055

The engine of the Day-Date from the late 70s to late 80s, this COSC-certified caliber introduced the high-beat frequency (28,800 bph) a...
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Garrett Silverstein
26 Jul 2025
July 26, 2025

Rolex 655

The Rolex Caliber 655, also known as the "Super Balance cal. 9.75," is a vintage automatic movement produced by Rolex. It is most famou...
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A close up of a watch.
Garrett Silverstein
26 Jul 2025
August 2, 2025

Rolex 3075

The final evolution of the original GMT-Master caliber, powering the Ref. 16750. This COSC-certified movement introduced crucial upgrad...
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Close-up of a mechanical watch movement showing gears, cogs, and metal components.
Garrett Silverstein
26 Jul 2025
August 2, 2025

Rolex 3085

A short-lived transitional movement that served as the direct predecessor to the Cal. 3185, powering the earliest GMT-Master II (Ref. 1...
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