CORUM Automatic Flyback Chronograph Watch Movement Kit

CORUM Automatic Flyback Chronograph 996.201.55 Watch Movement Kit with Dial and Hands

Overview

CORUM is a Swiss watch manufacturer established in 1955 in La Chaux-de-Fonds, known for its high-complication movements and avant-garde designs. The brand’s chronographs, particularly those with flyback functionality, were historically used in professional timing instruments and pilot’s watches due to their precision and mechanical efficiency. This watch movement kit features the original CORUM automatic flyback chronograph caliber 996.201.55, a chronometer-grade movement adjusted to five positions, confirming its adherence to strict accuracy standards. The kit includes the original dial and hands, intended for professional watchmakers restoring or servicing CORUM timepieces from the late 20th century.

The caliber 996.201.55 is built with 49 jewels and incorporates a flyback chronograph mechanism, enabling instantaneous reset and restart of the chronograph function via a single push. This complication was originally developed for aviation and motorsport timing, where rapid consecutive measurements are required. The movement also features subsidiary seconds at 9 o’clock and a big date display at 12 o’clock, both standard for this caliber, which was used in CORUM’s high-end chronograph models of the 1990s and early 2000s. The included dial is finished in blue with gold accents, featuring Arabic numerals for the 30-minute and 12-hour chronograph subdials, applied hour indexes, and pencil-style hands. The movement has been verified by a technician to be in good working condition but is sold without a stem.

This is an original service or replacement part designed for professional use. The movement is graded Excellent in our Condition Grading Scale below and may require cleaning, oiling, and adjustment to meet full manufacturer specifications before installation. The dial and hands are original to the movement, ensuring dimensional and aesthetic compatibility for restoration projects. The kit does not include a stem, crown, case, or additional gaskets, which must be sourced separately if required.

Specifications

The movement is the CORUM automatic flyback chronograph caliber 996.201.55, featuring 49 jewels and a chronometer-grade adjustment to five positions. Functions include central hours and minutes, subsidiary seconds at 9 o’clock, a flyback chronograph with a central seconds hand, a 30-minute counter at 3 o’clock, a 12-hour counter at 6 o’clock, and a big date display at 12 o’clock. The movement operates at a frequency of 28,800 vibrations per hour (4 Hz) and incorporates a self-winding mechanism with a bidirectional rotor. The absence of a stem is noted, and the movement is sold in its current condition, verified as functional but requiring professional servicing prior to installation.

The dial is original to the caliber 996.201.55, featuring a blue base with gold-tone accents. The chronograph subdials at 3 o’clock and 6 o’clock display Arabic numerals, while the main dial includes applied hour indexes and pencil-style hands in gold tone. The big date aperture at 12 o’clock is framed in gold, matching the accents on the subdial rings and hands. The dial dimensions correspond to the movement’s 30.40 mm diameter, a standard size for CORUM chronographs of this era. The hands set includes hour, minute, and chronograph hands, all in the original pencil style.

Markings on the movement include the caliber designation 996.201.55 engraved on the mainplate, along with the CORUM logo and “Swiss Made” indication. The rotor is decorated with CORUM’s signature wave pattern engraving, a distinguishing feature of the brand’s automatic movements from this period. No additional hallmarks or serial numbers are mentioned in the accompanying documentation or photographs.

Notes

• The article is sold “AS IS”. Please read our Warranty Policy before purchasing.
• Any parts not explicitly mentioned in this description or not visible in the accompanying photographs are not included.
• Colors may appear slightly different across various screens and devices so we cannot guarantee an exact screen-to-reality color match.

This CORUM 996.201.55 flyback chronograph watch movement kit provides a complete original solution for restoring compatible CORUM chronographs, including the movement, dial, and hands in matched condition.