Seiko Cal. 7145 - 315

The Seiko 7145-315 represents an important milestone in Seiko's 1981 lineup. With its 19mm lug width and 14.1mm profile, it sits comfortably on most wrists. [seikata-wm-ead9c65edfb9]

Also known as: Baby Tuna, Arnie

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

14.1mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1981

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