Seiko Cal. 5613 - 485

This Quartz model from 1981 features a 43mm Two-Tone case. With its 18mm lug width and 13.5mm profile, it sits comfortably on most wrists. [seikata-wm-993d616aeccf]

Also known as: Tuna

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

43mm

Case Thickness

13.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1981

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