Seiko Cal. 7131 - 425

This Solar model from 1978 features a 46mm Titanium case. With its 18mm lug width and 9.4mm profile, it sits comfortably on most wrists. [seikata-wm-d6b5b21520a9]

Also known as: Golden Tuna

Specifications

Movement

Solar

Case Material

Titanium

Case Width

46mm

Case Thickness

9.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Burgundy

Jewels

21j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1978

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