Seiko Cal. 7158 - 644

The Seiko 7158-644 represents an important milestone in Seiko's 1981 lineup. The Coin-Edge bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-6aef37fbb265]

Also known as: Bullhead, Golden Tuna

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

11.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Navy

Jewels

20j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1981

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