Seiko Cal. 3898 - 680

This Spring Drive model from 1978 features a 44mm Titanium case. With its 18mm lug width and 14.6mm profile, it sits comfortably on most wrists. [seikata-wm-8b576ff72a79]

Also known as: Sportsmatic, Navigator

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

44mm

Case Thickness

14.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Green

Jewels

25j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1978

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