Seiko Cal. 3891 - 706

This Solar model from 1968 features a 40mm PVD Black case. With its 21mm lug width and 11.7mm profile, it sits comfortably on most wrists. [seikata-wm-6630cfd48023]

Also known as: Turtle, Sportsmatic

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

40mm

Case Thickness

11.7mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1968

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