Seiko Cal. 4437 - 456

The Seiko 4437-456 represents an important milestone in Seiko's 1972 lineup. With its 22mm lug width and 8.0mm profile, it sits comfortably on most wrists. [seikata-wm-df991213b4f5]

Also known as: Monster

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

34mm

Case Thickness

8.0mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Navy

Jewels

33j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1972

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