Seiko Cal. 4436 - 581

The Seiko 4436-581 represents an important milestone in Seiko's 1979 lineup. The Coin-Edge bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-cfe3b594e75d]

Also known as: Sea Horse

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

13.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Cream

Jewels

30j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1979

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