SEIKO PRESAGE CLASSIC SERIES SUMI-IRO OPEN HEART AUTOMATIC WATCH – 40.2MM BLACK DIAL STEEL BRACELET

'Sumi-iro' translates from Japanese as 'ink black' — a black with depth and nuance that goes beyond a simple dark dial. The SPB471J1 takes that concept and adds an open heart aperture at 9 o'clock, revealing the oscillating rotor of the 6R5J movement beneath. It is a watchmaker's move: using the mechanism itself as part of the aesthetic. A 24-hour subdial at 6 o'clock adds a second complication, and the dual-curved sapphire crystal completes a dial that rewards attention at every angle.

Why This Watch Stands Out

• Open heart aperture at 9 o'clock — the movement visible as part of the dial design
• 'Sumi-iro' black dial inspired by the depth and texture of Japanese ink
• Seiko Calibre 6R5J automatic — 72-hour power reserve, hacking and hand-winding
• 24-hour subdial at 6 o'clock for a second time reference
• Dual-curved sapphire crystal for optical clarity and vintage-influenced aesthetics

Key Specifications

Movement: Seiko Calibre 6R5J, Automatic (21,600 vph), 24 jewels
Power Reserve: 72 hours
Case Size: 40.2 mm
Case Material: Stainless Steel with super hard coating
Crystal: Sapphire, dual-curved
Water Resistance: 100 metres
Dial: Black (Sumi-iro), open heart aperture at 9 o'clock, 24-hour subdial at 6 o'clock
Band: Stainless steel bracelet with deployment clasp
Model Reference: SPB471J1

In the Box

Seiko Presage watch (SPB471J1), original Seiko box, warranty card, instruction manual.

Authenticity & Shipping

Every watch at Ganga Ram's Watch Gallery is 100% genuine, sourced through authorised Seiko India channels. Valid Indian warranty included. Ships within 2–3 working days from our New Delhi store.

Tags: Seiko, Presage, Classic Series, Sumi-iro, Open Heart, Automatic, Black Dial, Dress Watch, Sapphire Crystal, 100m Water Resistant, SPB471J1