Seiko Cal. 6389 - 435

This Quartz model from 1981 features a 37mm Titanium case. With its 22mm lug width and 9.6mm profile, it sits comfortably on most wrists. [seikata-wm-81bbf3bbd3c2]

Also known as: Baby Tuna

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

37mm

Case Thickness

9.6mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Champagne

Jewels

20j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1981

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