While maintaining functionality, Credor movements emphasize slimness for beautifully proportioned dress watches.
The essence of that graceful design shines through in the Caliber 68 family.
Carrying on the design concept of slim movements developed in 1960, this series, manufactured exclusively for Credor since 1993, is an ultra-thin manual-winding movement with a thickness of just 1.98 mm.
Each part is made with meticulous care, down to a 10-micron (1/100 mm) level of accuracy.
One of the most difficult aspects of their production is adjusting the clearance between parts, which depends solely on the craftsman’s sense of touch.
Thus, delicate care is required in the process, and even the most skilled craftsman can complete no more than a single watch per day.

Caliber 6899 was developed for skeleton watches. Designed on the theme of bamboo swaying in the wind, this unique movement has an elaborate, beautiful appearance that captures the aesthetic sense of Japan. Skeleton movements in general have lower resistance to air hitting the balance, thus affecting rate accuracy. To overcome this issue, Caliber 6899 incorporates a torque control wheel. It achieves stable accuracy by controlling the balance wheel amplitude.

The pursuit of slimness also applies to watches with automatic movements. Automatic winding movements tend to be thicker due to the need for a rotor and other mechanisms for winding the mainspring. But Caliber CR01, a self-winding movement exclusive to Credor, comes in at less than 4 mm. This movement powers the Locomotive, which has a slim case profile and is less than 9 mm thick.

The Spring Drive movement is unique to Seiko and was released in 1999.
The unwinding force of a mainspring turns the wheels of the gear train, generating electrical energy from the motion of the glide wheel in proximity to coil-wrapped stators. This energy is used to control accuracy.
The mechanism thus achieves the high precision of a quartz movement while being driven by the high torque of the spring, thereby combining the advantages of mechanical and quartz movements.

Not only precise, the Spring Drive movements used in Credor watches also enhance aesthetics. This can be seen in Caliber 7R14’s chamfered bridge edges. After going through several steps of processing, they are hand-polished to be perfectly smooth with no distortion. The finished movement shines beautifully from every angle.
Caliber 7R14 features a special mechanism called the Torque Return System. For approximately 35 hours from the time the mainspring is fully wound, this mechanism uses the excess energy not needed for maintaining the precision of the watch to rewind the mainspring. This boosts the power reserve to around 60 hours without making the movement larger.
Moreover, the teeth on the wheels are given a smooth finish to reduce wear caused by friction and enable this complex mechanism to operate smoothly.

Caliber 7R31, used in Kuon, adopts the Dual-Spring Barrel, with two springs housed in a single barrel. Despite its slim silhouette, the movement achieves a power reserve of approximately 72 hours, the longest among the movements exclusive to Credor. The movement’s beautiful, curved patterns and a power reserve indicator are viewable through the watch’s see-through case back.

Thus, the Credor watches powered by Spring Drive movements attain the highest level of aesthetics and functionality. A creation of this kind can only be achieved through the skills of master craftsmen and women.