3 ms·
±10 seconds per year would be quite an expensive quartz movement. To be that reliable anywhere it should be thermocompensated, too. This is the range of Grand S
by maratc 1mo ago
±10 seconds per year would be quite an expensive quartz movement. To be that reliable anywhere it should be thermocompensated, too. This is the range of Grand Seiko 9F, Citizen Chronomaster, or Bulova Precisionist.