Credor Expands The Goldfeather Collection With The GCBY991 Porcelain Dial
Credor continues to showcase its mastery of ultra-thin watchmaking and traditional Japanese craftsmanship with the Goldfeather GCBY991, a refined dress watch distinguished by an Imari Nabeshima porcelain dial and an unusually restrained stainless steel case.

The Goldfeather name traces its origins back to 1960, when Seiko introduced a series of exceptionally thin mechanical watches driven by pioneering in-house movements. These early calibres set benchmarks for slimness in their era and later became integral to Credor’s identity when the brand was formally established in 1974. Reintroduced as a modern collection in 2023, the Goldfeather line now serves as a platform for artisanal dials produced using traditional Japanese techniques.
Imari Nabeshima Porcelain Dial
At the centre of the GCBY991 is a handcrafted porcelain dial produced at the Hataman Touen kiln, a workshop renowned for preserving the Imari Nabeshima tradition. This porcelain style originated in Okawachiyama during Japan’s Edo period and was historically reserved for the ruling elite. Today, it remains one of the country’s officially protected artistic crafts.

The dial is formed from a translucent white porcelain base that is carefully shaped, fired, and polished down to approximately 1mm in thickness. A rich cobalt-blue glaze creates a soft gradient that transitions from a lighter tone at the centre to deeper saturation around the edges. Before glazing, blue feather motifs are applied to the surface, while a secondary set of ghost-like, semi-transparent feathers and the hour markers are added after glazing. This layered process, which involves multiple firings, results in notable visual depth despite the dial’s extreme thinness.

The gently curved surface of the porcelain is protected by a box-shaped sapphire crystal. Matching this curvature, the minute hand features a subtly bent tip to follow the dial’s contour, ensuring precise legibility along the outer track.
Case and Proportions
Unlike many previous Goldfeather models crafted in precious metals, the GCBY991 is housed in stainless steel. The case measures 37.10 mm in diameter and just 8.30 mm in thickness, reinforcing its role as a traditional dress watch. The bezel and elongated lugs are finished using Zaratsu polishing, producing distortion-free surfaces with sharp transitions. Water resistance is rated at 30 metres.

Ultra-Thin Mechanical Movement
Powering the watch is the manually wound Credor calibre 6890, an ultra-thin movement measuring only 1.98mm in height. Operating at 21,600 vibrations per hour, it offers a power reserve of approximately 37 hours. The movement is visible through the sapphire caseback, where its curved bridges are decorated with broad striping and chamfered edges. The caseback is also engraved with the Hataman Touen kiln emblem, referencing the dial’s origin.

Strap and Availability
The watch is delivered on a black crocodile leather strap, secured by a stainless steel triple-folding clasp with push-button release. Production is limited to 60 pieces. The Credor Goldfeather Imari Nabeshima Porcelain Dial GCBY991 is scheduled for release in February 2026, with a retail price set at € 15,000.
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General Specifications:
Brand: Credor
Model: Goldfeather Imari Nabeshima Porcelain Dial
Reference: GCBY991
Lume: No
Case Material: Stainless steel
Case Dimensions: 37.10 mm diameter, 8.30 mm thickness
Crystal: Sapphire Glass
Case Back: Sapphire Glass
Water Resistance: 30 Meters
Strap: Black corcodile leather strap with a steel folding clasp
Calibre: 6890
Dimensions: 25.60 mm diameter, 1.98 mm thickness
Functions: Hours, minutes
Winding: Hand-wound
Frequency: 3 Hz (21,600 Vph)
Jewels: 22
Power Reserve: 37 Hours
Price: € 15,000
Limited Edition: Yes, 60 numbered pieces
Availability: February 2026
















































