Miyota 2315 Movement: Functions, History, and Interesting Facts

The Miyota 2315 is a quartz (battery-powered) caliber produced by the Japanese company Miyota, part of the Citizen Group. This movement is one of the most common quartz calibers used in affordable and mid-range watches. Thanks to its simplicity, reliability, and low manufacturing cost, the Miyota 2315 is a popular choice especially for fashion watches and models with simple designs.

History and Development
The Miyota 2315 caliber belongs to a long line of Miyota quartz movements that the Japanese manufacturer has been developing and producing for decades. It is a well-proven caliber that has undergone only minor improvements aimed at increasing accuracy and reducing power consumption over the years. Due to its robustness and availability, it has become a standard in many watches worldwide, especially where a reliable and cost-effective quartz movement is needed.

Technical Specifications and Functions

• Quartz movement powered by a button cell battery (typically SR920SW).

• Approximate battery life around 3 years.

• Accuracy around ±20 seconds per month.

• 3 hands (hour, minute, and second).

• Date complication with simple date display.

• Caliber diameter approx. 23.3 mm, height approx. 3.1 mm.

• Construction combines plastic and metal parts.

• Low power consumption.

Interesting Facts
The Miyota 2315 is favored for its reliability and simplicity, ensuring long-term trouble-free operation. With its date complication, it suits a wide range of watches—from basic everyday models to fashionable designs. Its construction allows relatively thin watch cases. Due to its low cost and simplicity, the Miyota 2315 is frequently used in watches where availability and ease of maintenance are priorities.