The Seiko Presage Japanese Blue “Ai Iro” SPB527J Automatic is a refined celebration of Japanese craftsmanship and mechanical watchmaking. Powered by the Calibre 6R5J automatic movement, it is driven by the motion of the wearer and delivers a 72-hour power reserve with an accuracy of +25 to -15 seconds per day within normal temperature ranges. The watch features a 40.2mm stainless steel case with a 13mm thickness, paired with a matching stainless-steel bracelet and a deployment clasp with push-button release for secure comfort. A beautifully textured blue dial is protected by a dual curved sapphire crystal, while the see-through case back reveals the intricate movement inside. Designed for everyday wear, it includes a pull-out crown and is water resistant to 100 metres, combining elegance, durability, and functionality. - Calibre 6R5J - Automatic – Powered by the Movement of the Wearer - 40.2mm Case Size - 13mm Case Thickness - Accuracy +25 -15 seconds a DAY (at normal temperature range (5°C and 35°C) - Stainless Steel Case and Bracelet - Deployment Clasp with Push Button Release - See-Thru Case Back - Pull Out Crown - 100 Meters Water Resistant