Seiko Cal. 7138 - 721

This Quartz model from 1966 features a 39mm PVD Black case. With its 21mm lug width and 14.1mm profile, it sits comfortably on most wrists. [seikata-wm-1cedcf2c2ca6]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

39mm

Case Thickness

14.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

100m

Dial Color

White

Jewels

25j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1966

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