Seiko Cal. 7181 - 227

The Seiko 7181-227 represents an important milestone in Seiko's 1990 lineup. With its 20mm lug width and 13.9mm profile, it sits comfortably on most wrists. [seikata-wm-ef6b2ce341d9]

Also known as: Baby Tuna, Arnie

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

45mm

Case Thickness

13.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1990

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