Seiko Cal. 4439 - 712

This Quartz model from 1981 features a 36mm Stainless Steel case. Powered by the 4439 caliber with 31j jewels beating at 28,800 bph, it delivers a 61 hours power reserve. [seikata-wm-3d4cc63b5f6a]

Also known as: Bullhead, Sea Horse

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

10.1mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1981

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