Some shots of the movement that powers the SKX031, the Seiko 7S26A. It is a robust, reliable and is a work horse movement. The only downside is that the movement does not hack and no manual wind capabilities.
The 7S26A basic specifications...
Introduced in 1996
Size: 12 ligne
Jewels: 21 (diashock)
Rate: 21,600 A/h
Power reserve: 40 hours
Functions: hours, minutes, central sweep seconds, quickset day and date
The Seiko 7S26A.
The rotor, signed Seiko Time Corp, movement reference and jewel count.
You can just see the pawl of the magic lever.