Seiko Cal. 4437 - 977

The Seiko 4437-977 represents an important milestone in Seiko's 1985 lineup. With its 21mm lug width and 8.3mm profile, it sits comfortably on most wrists. [seikata-wm-bb94b7837e8f]

Also known as: Turtle

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

35mm

Case Thickness

8.3mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Burgundy

Jewels

20j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1985

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