Seiko Cal. 7131 - 198

This Solar model from 1980 features a 44mm PVD Black case. With its 20mm lug width and 9.5mm profile, it sits comfortably on most wrists. [seikata-wm-fa214d31421f]

Also known as: Tuna

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

44mm

Case Thickness

9.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Navy

Jewels

31j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1980

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