Seiko Cal. 4437 - 781

The Seiko 4437-781 represents an important milestone in Seiko's 1979 lineup. With its 22mm lug width and 15.1mm profile, it sits comfortably on most wrists. [seikata-wm-9f5dec0b3088]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

39mm

Case Thickness

15.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Burgundy

Jewels

28j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1979

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