When it comes to watch movements, there are many options available on the market. Two popular movements are the Sellita SW200 and Miyota 9015. Both of these movements are reliable and accurate, but they do have some differences that are worth noting.
The Sellita SW200 is a Swiss-made automatic movement that is often used as a more affordable alternative to the ETA 2824-2 movement. It is a 25 jewel hat beats at 28,800 vibrations per hour (vph) and has a power reserve of approximately 38 hours. The SW200 has a hacking feature, which means that the second hand stop when the crown is pulled out, allowing for more precise time setting. It also has a quick set date function which allows for easy adjustment of the date.
On the other hand, the Miyota 9015 is a Japanese-made automatic movement that is gaining popularity in the watch industry. It is a 24-jewel movement that also beats at 28,800 vph and has a power reserve of approximately 42 hours. The 9015 also has a hacking feature and a quickset date function, making it easy to set the time and date accurately.
One key difference between the two movements is their size. The SW200 measures 11.5 lignes in diameter and is 4.6mm thick, while the 9015 measures 11.5 lignes in diameter and is 3.9mm thick. This makes the Miyota 9015 slightly thinner and more suitable for use in slimmer watches.
Another difference is the decoration on the movements. The SW200 is often decorated with Geneva stripes and perlage, while the Miyota 9015 has a more industrial look with a brushed finish. However, it is worth noting that the decoration of a movement does not affect its functionality.
In terms of accuracy, both movements are reliable and accurate, with the Miyota 9015 being known for its high accuracy and consistency. However, some watch enthusiasts prefer the SW200 for its Swiss-made heritage and reputation for quality.
In conclusion, both the Sellita SW200 and Miyota 9015 are excellent choices for watch movements and the decision between the two ultimately comes down to personal preference and the requirements of the watch being built. The SW200 may appeal to those who prioritize Swiss-made movements and traditional decoration, while the 9015 may appeal to those who prioritize accuracy and a slimmer profile.