Seiko Cal. 4437 - 931

Released in 1987, the Cal. 4437 with design code 931 was part of Seiko's domestic market collection. The Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-ee7fe94e073a]

Also known as: Samurai

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

37mm

Case Thickness

14.2mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

80m

Dial Color

Cream

Jewels

32j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1987

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