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Credor Locomotive
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DesignerGérald Genta (1979)
CaseHexagonal, integrated bracelet
Original movementQuartz
2024 relaunch movementIn-house automatic, caliber CR01
Diameter (relaunch)38.8 mm, 8.9 mm thick

Locomotive

The only integrated-bracelet sports watch designed by Gérald Genta for the Japanese market

Model History

In 1979 Credor entrusted Gérald Genta — already the designer of the Audemars Piguet Royal Oak and the Patek Philippe Nautilus — with the design of a watch intended exclusively for the Japanese market. The result was the Locomotive: a hexagonal case, clearly related to the Royal Oak's octagon but reinterpreted in a more compact, unusual geometry, paired with an integrated bracelet that echoes the visual separation between case and links already seen in Genta's most celebrated work.

The black dial, with a texture inspired by the sleepers and rails of a steam locomotive — hence the model's name — and the case's contained dimensions, designed to sit well even on smaller wrists, make it an instantly recognizable watch that nonetheless remained for decades an almost cult object, known mainly among the most attentive Japanese and international Genta collectors, with secondhand market prices that have risen over the years to several thousand dollars.

For the brand's fiftieth anniversary, in 2024, Credor relaunched the Locomotive in a new execution (reference GCCR999, 300 pieces) that faithfully respects the original geometry devised by Genta while updating its substance: a high-resistance titanium case, a dial with more sophisticated engraved texturing, and above all a new automatic movement developed entirely by Credor, the CR01 caliber, which replaces the original watch's quartz with an automatic-winding mechanism just 4 mm thick.

Technical Specifications

Designer
Gérald Genta, 1979
Case
Hexagonal, integrated bracelet
Movement (2024 relaunch)
Caliber CR01, in-house automatic
Movement thickness
Under 4 mm
Power reserve (CR01)
45 hours
Case (2024 relaunch)
High-resistance titanium, 38.8 x 8.9 mm
Dial
Black, railway-track-inspired pattern
Production (2024 relaunch)
Limited series of 300 pieces

Main Executions

Original LocomotiveQuartz movement, hexagonal steel casesince 1979
Locomotive 50th Anniversary — GCCR999Titanium, automatic caliber CR01, 300 piecessince 2024
Fun Fact

The Locomotive remains the only project Gérald Genta designed for a Japanese brand: in the very years he was drawing some of the most celebrated sports cases in the history of Swiss watchmaking, the Geneva-based designer found time to create, for the Japanese domestic market, a watch now often described as his most unusual chapter, and the least known outside Japan.