The Miyota 9015 movement: the iconic Japanese automatic caliber!

A Renowned Manufacturer: Citizen Miyota, a Japanese Watchmaking Heritage.

Behind the famous Miyota 9015 movement is a renowned manufacturer: Citizen Miyota. This company is a division of the Japanese group Citizen Watch Co., Ltd., founded in 1918 and recognized worldwide for its watchmaking expertise.

Citizen Miyota specializes in producing reliable and affordable watch movements for both its own brand of watches and many other watch companies, including microbrands. Miyota's reputation is built on its ability to offer robust, accurate, and easy-to-maintain calibers, making it a popular choice among independent watchmakers and young watch brands.

Miyota's main production facility is located in the city of the same name in Japan, where the manufacture of watch movements began in 1959. Today, Citizen Miyota is a major player in the watchmaking industry, and the caliber 9015 is one of its flagship models.

We can also mention the 8215 range or even certain developments of the 9015 with the 9039 and the famous Miyota GMT 9075 which we use in our Paul model.

The Miyota 9015 Movement: Operation and Architecture.

The Miyota 9015 is an automatic caliber designed to compete with "affordable" Swiss movements like the ETA 2824-2 and Sellita SW200-1. It is prized for its robustness, thinness, and reliability, making it a popular choice for microbrands looking to offer quality mechanical watches at a competitive price.

Operation and Structure

The Miyota 9015 is an automatic movement with bidirectional winding thanks to its oscillating weight, which charges the mainspring by detecting wrist movements. It also incorporates a manual winding function, allowing the user to boost the power reserve by turning the crown.

The movement's architecture is relatively simple and optimized for reliability. It features a metal escape wheel, a balance wheel oscillating at 28,800 vibrations per hour (4 Hz), and a shock-protection mechanism, all assembled industrially.

Functionally, the Miyota 9015 is a three-hand watch with a date display. Its second hand has a stop-seconds function, allowing for precise time setting—an essential feature for watch enthusiasts who value precision.

Technical characteristics of the Miyota 9015

Here is a detailed summary of the Miyota 9015 specifications:

• Movement type: Automatic
• Frequency: 28,800 vibrations per hour (4 Hz)
• Number of rubies: 24
• Power reserve: Approximately 42 hours
• Announced accuracy: Between -10 and +30 seconds per day
• Diameter: 26 mm
• Thickness: 3.9 mm (particularly thin for an automatic movement)
• Functions: Hours, minutes, seconds
• Stop-second for precise time setting
• Date with rapid change
• Shock protection mechanism: Parashock
• Winding: Bidirectional via the oscillating weight or manual via the crown

Thanks to its thinness and reliability, the Miyota 9015 is an ideal movement for modern automatic watches, especially models with elegant and thin cases.

The Miyota 9015 Movement at GUSATVE & Cie!

At GUSTAVE & Cie, we work closely with the Miyota manufacturer. We use the caliber 9015 in our latest collection, the Charles watch, in homage to Charles Garnier.

This reliable and affordable movement allows us to focus on the rest of the watch: its design, its beautiful finishes, its dial, etc. But above all, it is this type of movement that allows us to offer you accessible projects, like this Charles collection sold at €590.

With its decent accuracy, 42-hour power reserve and proven robustness, the 9015 remains an excellent choice for any brand wishing to offer a quality mechanical watch without resorting to more expensive Swiss movements.

So, whether for mechanical watch enthusiasts or microbrand creators, the Miyota 9015 remains an essential movement in the current watchmaking landscape.