Seiko Cal. 4490 - 990

This Spring Drive model from 1971 features a 45mm Stainless Steel case. With its 20mm lug width and 14.0mm profile, it sits comfortably on most wrists. [seikata-wm-d4011df2683e]

Also known as: Turtle

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

14.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Black

Jewels

21j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1971

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