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Rolex watch movement with visible gears, jewels, and engraved Rolex Perpetual text and crown logo.
Garrett Silverstein
26 Jul 2025
July 27, 2025

Rolex 1036

The Rolex 1036 is the historically vital movement that powered the first GMT-Master (ref. 6542) from 1954. The number "655" refers to a...
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Close-up of a mechanical watch movement showing gears, springs, and intricate metal components.
Garrett Silverstein
26 Jul 2025
July 27, 2025

Rolex 3186

The Rolex Caliber 3186 is a COSC-certified chronometer movement used in GMT-Master II and Explorer II models starting around 2005. Its ...
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Close-up of a mechanical watch movement with visible gears, screws, and “Daytona” engraved on a metal part.
Garrett Silverstein
26 Jul 2025
July 28, 2025

Rolex 4130

The Rolex 4130 is the first fully in-house, integrated automatic chronograph by Rolex, introduced in 2000 to power the Cosmograph Dayto...
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Close-up of a Rolex watch movement with gears and engraved text visible on the metal parts.
Garrett Silverstein
26 Jul 2025
July 28, 2025

Rolex 5035

The Rolex 5035 is a high-grade, in-house quartz movement developed for the Oysterquartz Datejust. Introduced in 1977, it is a thermocom...
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Close-up of a Rolex watch movement, showing gears, jewels, and engraved markings.
Garrett Silverstein
26 Jul 2025
July 27, 2025

Rolex 5055

The Rolex 5055 is a modern, in-house automatic movement developed for the Cellini collection. Introduced in 2017, its signature feature...
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Close-up of mechanical watch movement with visible gears, cogs, and intricate metal parts.
Garrett Silverstein
26 Jul 2025
July 27, 2025

Rolex 618

The Rolex Caliber 618 is a large (16''') manual-wind movement based on a Cortébert 616 pocket watch ébauche. Rolex modified and finishe...
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Close-up of a Rolex Perpetual Chronometer watch movement showing engraved text and mechanical parts.
Garrett Silverstein
26 Jul 2025
July 27, 2025

Rolex 620

The Rolex Caliber 620 was a workhorse automatic movement of the "Big Bubbleback" era from the mid-1940s to early 1950s. As a key member...
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Close-up of a Rolex watch movement rotor engraved with Rolex Perpetual and technical details.
Garrett Silverstein
26 Jul 2025
July 27, 2025

Rolex 645

The Rolex Caliber 645 is a chronometer-grade automatic movement from the early 1950s "Semi-Bubbleback" era. As part of the larger 600-s...
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Garrett Silverstein
26 Jul 2025
July 26, 2025

Rolex 500

The Rolex Caliber 500 is the specific, foundational automatic movement that launched the legendary "Oyster Perpetual" line in the early...
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Close-up of a mechanical watch movement showing gears, levers, and intricate metal components.
Garrett Silverstein
26 Jul 2025
July 28, 2025

Rolex 72C

The Rolex Caliber 72C is a manual-wind, triple-calendar chronograph movement based on the Valjoux 72C. It was heavily modified and fini...
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