Seiko Cal. 7138 - 388

This Automatic model from 1972 features a 36mm Titanium case. With its 18mm lug width and 8.4mm profile, it sits comfortably on most wrists. [seikata-wm-7de4da68dc56]

Also known as: Helmet, Golden Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

36mm

Case Thickness

8.4mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

160m

Dial Color

White

Jewels

27j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1972

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