SPB403J1
Part of the Presage Craftsmanship Series, the Seiko SPB403J1 showcases a pristine white enamel dial—hand-finished by master Takumi artisans using centuries-old techniques. Each dial is layered and fired multiple times, achieving a flawless, glass-smooth surface normally reserved for fine art and ceramics.
Its dual-curved sapphire crystal and polished 40.2 mm case enhance light play, while the multi-row stainless-steel bracelet offers vintage comfort and refined sparkle. Inside beats the in-house 6R55 automatic calibre, delivering a robust 72-hour power reserve with daily accuracy of –15/+25 seconds. A see-through case back reveals the movement, blending traditional artistry with modern engineering.
Movement
Calibre: 6R55 (automatic, manual winding)
Accuracy: –15/+25 s per day
Power Reserve: ≈ 72 hours
Jewels: 24
Case & Crystal
Material: Stainless steel, super-hard coating
Diameter: 40.2 mm Thickness: 12.1 mm Length: 48.0 mm
Crystal: Dual-curved sapphire, inner AR coating
Water Resistance: 10 bar
Magnetic Resistance: 4,800 A/m
Dial
Colour: Pure white enamel (hand-crafted)
Display: Three-hand with central seconds, date at 3 o’clock
Functions: Stop-seconds (hacking)
Bracelet
Material: Stainless steel, multi-row
Clasp: Three-fold with push-button release
Lug Width: 20 mm
Weight: 146 g
Additional Features
See-through screw case back
Enamel dial individually hand-finished by Takumi artisans
