SII Begins Mass Production of the World’s Smallest (1.0 × 0.8 × 0.32mm) Tuning-Fork Crystal Resonator “SC-10S”
Seiko Instruments Inc. (President: Yoichi Endo; Headquarters: Chiba City, Chiba Prefecture; hereinafter “SII”) will begin mass production of the “SC-10S” (32.768kHz), the world’s smallest* tuning-fork crystal resonator measuring 1.0 × 0.8mm, starting in April 2026.
*Based on SII research as of November 2025.
