Seiko Cal. 5681 - 407

This Automatic model from 1968 features a 36mm Titanium case. With its 22mm lug width and 10.4mm profile, it sits comfortably on most wrists. [seikata-wm-a781780365b2]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

36mm

Case Thickness

10.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Champagne

Jewels

28j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1968

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