Seiko Cal. 4477 - 712

The Seiko 4477-712 represents an important milestone in Seiko's 1991 lineup. The Coin-Edge bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-c0bc084b31d2]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

13.8mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Silver

Jewels

30j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1991

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