New Grand Seiko Models for 2021: Seasonal GMTs
By: cazalea : February 25th, 2021-08:00
SBGJ 251 Hi-Beat SBGJ 249 Hi-Beat Movements SBGJ 249 & SBGJ 251 Caliber 9S86 Driving system: Automatic Vibrations: 36,000 vibrations per hour (10 beats per second) Accuracy: +5 to -3 seconds per day Power reserve: 55 hours GMT hand Number of jewels: 37 Sp...