Seiko Cal. 4437 - 806

This Quartz model from 1987 features a 39mm PVD Black case. Powered by the 4437 caliber with 26j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-19cc75202b6d]

Also known as: Bullhead

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

39mm

Case Thickness

15.0mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1987

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