Seiko Cal. 7181 - 830

The Seiko 7181-830 represents an important milestone in Seiko's 1981 lineup. The Fixed bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-99326c30d1e2]

Also known as: Bullhead, Baby Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

41mm

Case Thickness

11.6mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

50m

Dial Color

Silver

Jewels

30j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1981

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