The Seiko V693A is a battery-powered quartz chronograph movement featuring a three-hand analog display, a 60-minute stopwatch, and a date complication. Part of Seiko’s highly regarded V690-series, the V693A is designed for sport and casual watches requiring robust chronograph functions combined with accurate timekeeping. The movement is known for its durability, reliability, and straightforward user interface, making it a popular choice for watch manufacturers worldwide.

Overview

The V693A provides essential chronograph features: a central hour and minute hand, a central chronograph seconds hand, and subdials for a 60-minute elapsed time counter and running seconds. The addition of a quickset date window, typically at the 3 o’clock position, enhances everyday usability.

This movement runs on a silver oxide battery (SR927W), offering approximately 3 years of battery life. Its construction emphasizes reliability and ease of maintenance, supporting frequent use of the stopwatch without compromising accuracy.

Key Features

• Quartz Accuracy: ±15 seconds per month

• Chronograph Functions:

  • Central chronograph seconds hand

  • 60-minute counter (subdial)

  • Running small seconds (subdial)

• Date Function: Quickset date window

• Battery Powered: Uses SR927W silver oxide battery

• Hacking Seconds: Stops seconds hand when time is being set

• Manual Chronograph Reset Calibration: Allows correction of hand alignment if needed

Technical Specifications

• Caliber: Seiko V693A

• Movement Type: Quartz analog chronograph

• Battery Type: SR927W (1.55V silver oxide)

• Battery Life: Approximately 3 years

• Chronograph Range: 60 minutes

• Accuracy: ±15 seconds per month

• Calendar: Quickset date (no day display)

• Jewels: 0

• Hand Hole Sizes:

  • Hour: 1.20 mm

  • Minute: 0.70 mm

  • Chronograph Seconds: 0.20 mm

• Dimensions:

  • Diameter: Approx. 27.0 mm

  • Thickness: Approx. 4.0 mm

The movement fits watch cases between 38 mm and 44 mm, making it versatile for various chronograph styles.

Crown and Pushers Operation

Crown

• Position 0: Normal running mode

• Position 1: Quickset date adjustment (turn clockwise)

• Position 2: Time setting with hacking seconds

Pushers

• Top Right (Button A): Start and stop chronograph

• Bottom Right (Button B): Reset chronograph (after stopping)

Battery Replacement and Reset

1. Open the caseback and remove the old SR927W battery with plastic tweezers.

2. Insert a new battery, ensuring proper polarity.

3. Perform an AC reset by bridging the reset terminal and battery positive terminal using tweezers.

4. Verify that the watch resumes ticking normally.

Replace gaskets during battery change and test for water resistance on rated watches.

Maintenance Tips

• Chronograph Reset: Use crown and pusher sequence to recalibrate if hands do not return to zero.

• Date Setting: Avoid changing the date between 9:00 PM and 3:00 AM to prevent damage.

• Lubrication: Minimal and limited to keyless works during full servicing.

• Pusher Function: Inspect and clean to prevent sticking or malfunction.

• Hand Clearance: Ensure hands have sufficient clearance to avoid interference.

Common Issues

• Chronograph Hands Not Resetting Correctly: Perform manual recalibration.

• Watch Stopping: Battery depletion or corrosion—replace battery and clean contacts.

• Sticky Pushers: Clean and lubricate to restore smooth operation.

• Date Not Advancing: Possibly due to incorrect adjustment timing or worn parts.

• Inaccurate Time: Exposure to strong magnets or battery aging.

Applications

The Seiko V693A is suited for:

• Sport and pilot chronograph watches

• Field and casual chronographs

• Reliable analog quartz chronograph timepieces

• Mid-range watch collections emphasizing function and value

Its durability and ease of use make it a popular choice for active lifestyles.

Conclusion

The Seiko V693A is a robust and precise quartz chronograph movement delivering accurate timing and stopwatch functions in a classic analog format. With a 3-year battery life, quickset date, and user-friendly operation, it is well-suited for a wide variety of watches requiring dependable chronograph performance. Backed by Seiko’s renowned quality, the V693A remains a favorite for both watchmakers and enthusiasts seeking a versatile, durable, and affordable quartz chronograph solution.