Seiko Cal. 4478 - 702

The Seiko 4478-702 represents an important milestone in Seiko's 1982 lineup. The Coin-Edge bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-aba9dbd9567e]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

38mm

Case Thickness

13.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Green

Jewels

31j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1982

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