Seiko Instruments Inc. VK67

The VK67 is a quartz chronograph movement manufactured by Seiko Instruments Inc. in Japan. It belongs to Seiko Instruments' hybrid mecaquartz family, combining quartz timekeeping with a mechanical module for chronograph operation. The movement, maintains accuracy within ±20 seconds per month, and delivers approximately three years of battery life. Its distinctive feature is the mechanical chronograph submodule, which provides a tactile "click" feel when started and stopped that distinguishes it from fully electronic chronographs. The caliber remains in current production and is used primarily in Seiko and affiliated brand chronograph models.