Seiko Cal. 4437 - 101

The Seiko 4437-101 represents an important milestone in Seiko's 1967 lineup. With its 18mm lug width and 8.5mm profile, it sits comfortably on most wrists. [seikata-wm-1fbdf44b360c]

Also known as: Turtle

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

36mm

Case Thickness

8.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Black

Jewels

28j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1967

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