Seiko SPB445J1

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Presage Arita Porcelain ‘Concentric’ – Craftsmanship Series


This item will be released July 1, 2024.
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This watch will be available in July


This timepiece is from the Presage Craftsmanship Series – watches made by skilled Japanese craftspeople which complement Seiko’s watchmaking expertise.

Arita, a small town in Kyushu -third largest island in southwest Japan, came to prominence in the early 17th century when clay suitable for porcelain was discovered becoming highly prized for high quality artistry. Despite a history of over 400 years, this traditional craft has never stopped evolving in terms of materials and moulding techniques.

Under dual-curve sapphire crystal glass is an Arita porcelain blue-white dial, contrasting with deep blue accented hands and indices; traditional colours of Arita porcelain. The recessed concentric ring pattern around the centre with the recessed subdial at 6 o’clock demonstrate expert craftsmanship due to the difficulty of their creation from delicate porcelain. The case of this timepiece has a super-hard coating, allowing for improved scratch-resistance.

This timepiece is powered by an in-house automatic 6R5H movement, accurate to -15/+25 seconds per day, with a power reserve of 72 hours.
Seiko Presage: Timeless looks, precise mechanical timekeeping. Minimalistic watch designs with a distinctly Japanese aesthetic.

*This Arita porcelain dial is created through handwork and firing at a high temperature. As a result, it may have little dimples, tiny dots, and an uneven color. These are unique features of genuine Arita porcelain dials, of which no two are exactly alike.


Accuracy: -15/+25 seconds per day
Calibre: 6R5H
Movement Type: Automatic with Manual Winding
Power Reserve: 72 Hours
Jewels: 24
Dial Colour: White
Case Material: Stainless steel (Super Hard Coating)
Strap/Bracelet: Stainless Steel
Clasp: Three-fold clasp with push button release
Case Diameter: 40.6mm
Case Thickness: 12.5mm
Case Length: 49.1mm
Lug Width: 20.0mm
Other Specifications
Water Resistance: 10 bar
Crystal Coating: Anti-reflective coating on inner surface
Crystal Type: Dual-curved sapphire crystal
Other Specifications: Screw case back, See-through case back, Arita Porcelain Dial
Watch Function: 24-hour hand, Stop seconds hand function
Magnetic Resistance: 4,800 A/m

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