Specifications:

Ref - Seiko 5 Sports cal. 6106 “UFO” 8430
Cal - 6106
Serial - 025xxx
Year - February 1970
Bracelet - Seiko bracelet
Box - No
Papers - No

This is the first version of the UFO Diver with Proof Dial and Proof Case. The Calendar features also the Japanese week days.
Movement is working accordingly, internal bezel and quick set of the date are also working!
It’s fully original unrestored, except the bracelet which is Seiko but not original from this model.

Watch is a rare bird, really hard to find!