- SW300-1 a: Date
- SW300-1 b: No date
The Sellita caliber SW300-1 is a slim automatic watch movement, Swiss made with 25 jewels. This caliber is the main competitor and clone of the ETA caliber 2892-A2. Many reputable watch companies are using this movement as an alternative to the ETA mechanism due to it being more economical and readily available – and as of 2020, it also offers more power reserve than the ETA.
