Seiko Cal. 4437 - 109

The Seiko 4437-109 represents an important milestone in Seiko's 1987 lineup. With its 21mm lug width and 14.4mm profile, it sits comfortably on most wrists. [seikata-wm-a2e44ab3c353]

Also known as: Navigator, Golden Tuna

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

14.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

White

Jewels

24j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1987

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