The Seiko 8800C is a reliable and precise quartz analog movement introduced in the late 20th century. Designed for straightforward timekeeping, it is commonly found in Seiko watches that prioritize simplicity and accuracy. The 8800C movement features hour, minute, and second hands along with a date complication, providing essential functionality with low maintenance requirements.

Technical Specifications

• Caliber Number: 8800C

• Movement Type: Quartz (Analog)

• Display:

  • Hour, minute, and seconds hands

  • Date window (typically positioned at 3 o’clock)

• Accuracy: Approximately ±20 seconds per month

• Battery Type: SR920SW or equivalent silver oxide battery

• Battery Life: About 2 to 3 years

• Jewels: None (electronic quartz movement)

• Crown Positions:

  • Position 0: Normal operation

  • Position 1: Date adjustment

  • Position 2: Time adjustment

Key Features

Accurate Timekeeping

The 8800C is powered by a quartz oscillator that delivers precise timekeeping, maintaining accuracy within ±20 seconds per month. This makes it suitable for daily wear and practical use.

Date Function

Featuring a date complication, the movement displays the date through a window, usually at the 3 o’clock position. The date can be adjusted manually via the crown without interfering with timekeeping.

Efficient Battery Use

Powered by an SR920SW silver oxide battery, the movement offers efficient power consumption with a typical battery lifespan of 2 to 3 years.

Operating Instructions

Time Setting

1. Pull the crown out to the second click (Position 2).

2. Rotate the crown clockwise or counterclockwise to adjust the hour and minute hands.

3. Push the crown back to Position 0 to resume normal operation.

Date Setting

1. Pull the crown out to the first click (Position 1).

2. Rotate the crown clockwise to advance the date.

3. Avoid setting the date between 9 PM and 2 AM to prevent damage to the date-change mechanism.

4. Push the crown back to Position 0 after adjustment.

Battery Replacement and Maintenance

• The movement uses an SR920SW silver oxide battery or equivalent.

• Battery life ranges typically between 2 and 3 years, depending on usage.

• Battery replacement is recommended to be performed by a professional to maintain water resistance and proper seal integrity.

• No reset is generally required after battery replacement, but time and date should be verified.

Maintenance Recommendations

• The 8800C requires no lubrication due to its electronic quartz design.

• Avoid exposure to strong magnetic fields, shocks, and extreme temperatures to maintain accuracy.

• Clean the watch regularly to preserve its appearance and functionality.

• Water-resistant models should undergo regular pressure testing.

Watches Featuring the 8800C

The 8800C movement is found in:

• Seiko’s classic quartz analog watches from the late 20th century.

• Timepieces focusing on practical and reliable analog time and date functions.

• Watches designed for daily wear with simple, functional dials.

Summary Table

Conclusion

The Seiko 8800C is a reliable and accurate quartz movement offering essential analog timekeeping with a convenient date feature. Its efficient power use and low maintenance requirements make it a practical choice for everyday watches. The 8800C reflects Seiko’s dedication to quality quartz technology and enduring performance in straightforward analog calibers.