BIRTH YEAR PRESENT

Grand Seiko

Spring Drive U.F.A. SLGB001 / SLGB003

This 37mm generation introduced Spring Drive U.F.A. Caliber 9RB2, rated to ±20 seconds per year.

History timeline

  1. 2025

    Introduced

Evolution 9 Spring Drive U.F.A.

Explore the Lineage

  1. 2025 — Grand Seiko Spring Drive U.F.A. SLGB001 / SLGB003Currently viewing
  2. 2026 — Grand Seiko Evolution 9 Spring Drive U.F.A. Core GenerationCurrent model
  3. 2026 — Grand Seiko Spring Drive U.F.A. Ushio 300 DiverCurrent model
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Source: Grand Seiko

BIRTH YEAR PRESENT | Spring Drive U.F.A. SLGB001 / SLGB003