Seiko Presage with the screwdown see-through caseback provides a view of the 23-jewel movement, with manual and automatic winding capability, a frequency of 21,600 vibrations per hour, and a power reserve of approximately 41 hours
Seiko Presage with the screwdown see-through caseback provides a view of the 23-jewel movement, with manual and automatic winding capability, a frequency of 21,600 vibrations per hour, and a power reserve of approximately 41 hours