Seiko VK64 meca quarz

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The Seiko VK64 meca-quartz hybrid movement features a 60-minute chronograph counter at the 9 o'clock position and a 24-hour indicator at the 3 o'clock position. [1, 2]

Movement Details

Type: Meca-quartz (quartz timekeeping with a mechanical module for smooth chronograph operation and instant reset).
No regular second-hand. - the hour and minute hands are as youd expect. The "second hand" is the stopwatch chronograph second hand only.
Layout: Bi-compax (two main sub-dials horizontally opposed at 3 and 9 o'clock).
Left Sub-dial (9:00): 60-minute elapsed time counter for the chronograph stopwatch function.
Right Sub-dial (3:00): 24-hour time indicator that mirrors the current time (not an independent GMT hand).
Date Position: Often paired with a date window at the 6 o'clock position. In this example, the date function is not used.

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How It Works

Quartz Timekeeping: The core timekeeping (hours, minutes, and continuous or 24-hour display) is powered by a standard battery and quartz crystal, offering high accuracy (typically ±20 seconds per month) and a battery life of roughly 30 to 36 months (using a SR936SW / R394 cell). [1, 2, 3, 4]
Mechanical Chronograph: The stopwatch/chronograph function operates via a mechanical gear and lever module. Pressing the start/stop pusher engages a physical mechanical feel, and the chronograph hand sweeps smoothly rather than ticking in 1-second jumps. [1, 2]
Instant Snap-Back Reset: Pressing the reset pusher triggers a mechanical hammer/spring mechanism that snaps the chronograph hands back to zero instantaneously. [1, 2, 3]

Common Uses

Used widely by independent microbrands and mainstream watchmakers (such as Charlie Paris, Tusenö, Vostok Europe, and various vintage-style motorsport watches) to deliver the tactile feel of a mechanical chronograph without the high cost and maintenance of a full mechanical movement

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