St21 movement energy storage

What is a seagull ST21 movement?

This movement is the most widely used base movement in Seagull's ST21 series, providing essential functions such as hour, minute, second hands, and a calendar display to meet daily needs. It is also featured in watches like the Ocean Star.

What is a ST17 manual winding movement?

This innovation results in the ST17 series of manual-winding movements, boasting an ultra-thin profile of just 3.2mm. The automatic mechanical movement operates at 28,800 vibrations per hour and offers a power reserve of up to 42 hours.

Is the st2130 a clone of the ETA 2824?

1. Carlos (sapcmc) during his discussions with Seagull figured out that the ST2130 is actually the ST24. They had never heard of a ST24 and were confused by the designation. After some explanation that the ST24 was a clone of the ETA 2824 , they determined it was the 2130. I inquired on TZ-UK when rfrazier posted his review of the ST24 & ST26.

What does a st2130 look like?

The ST2130 also comes with a set of hands. The ST2130 also has some decoration. There is also oil under the jewel cap – good stuff. The jewel hole is a bit roughed up by the perlage, and there is a mark at 10 o’clock of the jewel hole… All sorts of dirt on the barrel. Looks like skin flakes caked in. A bit of fibre next to the balance jewel.

How do you measure a st2130?

All three movements are measured in 6 positions (Dial up, dial down, crown up, crown down, crown left and crown right), and I wait 25s in each position before taking down the measurements. To sum the performance up: The ST2130 has a maximum beat rate difference between positions of 18s/day, and a maximum amplitude difference of 40 degrees.

How many parts are in a ST18 movement?

The movement, the size of a single coin, contains 172 meticulously crafted parts. The movement production line uses fully imported state-of-the-art processing equipment. Each ST18 movement is equipped with an Incabloc shock absorber structure from Switzerland, maximally protecting its ultra-thinness from external shocks.