Seiko Cal. 7138 - 548

This Spring Drive model from 1971 features a 43mm Titanium case. With its 18mm lug width and 12.5mm profile, it sits comfortably on most wrists. [seikata-wm-c552bb583469]

Also known as: Turtle, Emperor

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

43mm

Case Thickness

12.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

White

Jewels

36j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1971

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