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We all know the 2824 movement, it' designed by ETA and one of the most popular movements around. Ofcourse the Chinese made a clone of it, also knows as the Asian 2824 or A2824. BUT, this is not our only option around!
Let's start with an overview of the movements that are simular and easy to swap:
ETA 2824
* Sellita SW200 (also known as the Oris 735)
* Hangzhou 6301
* Seagull TW2130 (also known as the ST2130)
* Miyota 8215
Let's start with the ETA 2824.
ETA 2824
Twenty five jewels, made in Swiss, a true workhorse with a good reputation. Pricing around $250. Power reserve is 40 hours and it is 8 beats a second (28,800 BPH)! Shock resistance by using an incabloc to prevent damage of the balancewheel when the watch is dropped. Hand sizes are 150/90/25
There are three grades of this movement:
* Standard
* Elaborated
* Top
Standard grade
Regulated in two positions with an average rate of +/- 12 sec/day.
Elaborated grade
Regulated in three positions with an average rate of +/- 7 sec/day.
Top grade
Regulated in five positions with an average rate of +/- 4 sec/day.
Sellita SW200
Twenty five jewels, made in Swiss, just like the ETA version it has a great reputation and has proved to be a real workhorse. Pricing varies and these are hard to find, mostly around $200.
Differences with the ETA:
* One extra jewel (26 jewels)
* 38 hours power reserve
Hangzhou 6301
This one is made in China, also 8 beats a sec and are sold around $90. Same power reserve of 40 hours as the ETA. It is regulated to two positions within 15 sec/day.
Differences with the ETA:
* 26 jewels, one more then the ETA
* Shockprotection using Novodiac method
Seagull TW2130
China made, available around $100. Many people say those has been build in a better enviroment then the Hangzhou, but I can't confirm this. Some people found way to much oil in the Hangzhou and the Seagull should be build using the right amount of oil etc. But again, I can't confirm or deny this as it's something that could happen occasionally. It also runs at 8 beats/sec. 40 hours power reserve like the ETA!
Differences with the ETA:
* 26 jewels, one more then the ETA
* Shockprotection using Novodiac method
Miyota 8215
Made in Japan, available at $40-60 and a well known movement.
Differences with the ETA:
* 21 jewels
* 6 beats per second
* unpolished
* 45 hour power reserve (Awesome!)
* Rotor winding in just one direction (so the ETA will wind the mainspring faster using the rotor)
* Shock protection using the Parashock method
* Different hand sizes and stem height (So it's not directly interchangeable!!)
* No hack function
Quick overview of the most common specifications:
Thanks for reading.
Let's start with an overview of the movements that are simular and easy to swap:
ETA 2824
* Sellita SW200 (also known as the Oris 735)
* Hangzhou 6301
* Seagull TW2130 (also known as the ST2130)
* Miyota 8215
Let's start with the ETA 2824.
ETA 2824


Twenty five jewels, made in Swiss, a true workhorse with a good reputation. Pricing around $250. Power reserve is 40 hours and it is 8 beats a second (28,800 BPH)! Shock resistance by using an incabloc to prevent damage of the balancewheel when the watch is dropped. Hand sizes are 150/90/25
There are three grades of this movement:
* Standard
* Elaborated
* Top
Standard grade
Regulated in two positions with an average rate of +/- 12 sec/day.
Elaborated grade
Regulated in three positions with an average rate of +/- 7 sec/day.
Top grade
Regulated in five positions with an average rate of +/- 4 sec/day.
Sellita SW200

Twenty five jewels, made in Swiss, just like the ETA version it has a great reputation and has proved to be a real workhorse. Pricing varies and these are hard to find, mostly around $200.
Differences with the ETA:
* One extra jewel (26 jewels)
* 38 hours power reserve
Hangzhou 6301

This one is made in China, also 8 beats a sec and are sold around $90. Same power reserve of 40 hours as the ETA. It is regulated to two positions within 15 sec/day.
Differences with the ETA:
* 26 jewels, one more then the ETA
* Shockprotection using Novodiac method
Seagull TW2130

China made, available around $100. Many people say those has been build in a better enviroment then the Hangzhou, but I can't confirm this. Some people found way to much oil in the Hangzhou and the Seagull should be build using the right amount of oil etc. But again, I can't confirm or deny this as it's something that could happen occasionally. It also runs at 8 beats/sec. 40 hours power reserve like the ETA!
Differences with the ETA:
* 26 jewels, one more then the ETA
* Shockprotection using Novodiac method
Miyota 8215
Made in Japan, available at $40-60 and a well known movement.
Differences with the ETA:
* 21 jewels
* 6 beats per second
* unpolished
* 45 hour power reserve (Awesome!)
* Rotor winding in just one direction (so the ETA will wind the mainspring faster using the rotor)
* Shock protection using the Parashock method
* Different hand sizes and stem height (So it's not directly interchangeable!!)
* No hack function
Quick overview of the most common specifications:

Thanks for reading.