
Overview
Description
Since its 1960 debut, Grand Seiko has pursued “the nature of time,” perfecting ±0.5 s‑per‑day Spring Drive and high‑beat 9SA5 calibres. A new 2025 Ultra‑Flat Architecture Platinum and Titanium duo showcases the brand’s mastery of micro‑engineering and hand‑finished Zaratsu cases, opening a fresh era of ultra‑slim luxury made entirely in Japan.
Heritage
History & Heritage
Signature work
Signature contributions
Collections
Iconic models
Craft
Technical & craftsmanship details
Movements
Complications
Build & finishing
Positioning
Market position & pricing
Design system
Design language & materials
Perspective