⚙️ Movement Types

Spring Drive — The Best of Both Worlds

⚙️
By Mobixoft Editorial Team
Watch experts & horology writers · Updated

Invented by Seiko engineer Yoshikazu Akahane after 28 years of development. Spring Drive combines the soul of a mechanical watch with the brain of a quartz.

⚙️ THE HYBRID MAGIC

  • Powered by a mainspring (like a mechanical watch)
  • Regulated by a quartz crystal and IC (like a quartz watch)
  • No battery needed — the mainspring generates its own electricity
  • The "Tri-synchro Regulator" combines mechanical, electrical, and electromagnetic energy

✨ THE GLIDE MOTION SECOND HAND

Spring Drive's most mesmerizing feature: the second hand sweeps in a perfectly smooth, continuous glide. No tick. No step. It's like watching time flow rather than count.

📊 SPECS

  • Accuracy: ±1 second per day (±15 sec/month)
  • Power reserve: 72 hours standard
  • 200+ components
  • Only made by Grand Seiko — exclusively

🏆 NOTABLE SPRING DRIVES

  • Grand Seiko SBGA211 "Snowflake" — Textured white dial inspired by snow
  • Grand Seiko SBGA413 "Shunbun" — Cherry blossom pink dial
  • Grand Seiko SLGA007 "White Birch" — Award-winning birch tree texture
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