Seiko Cal. 5613 - 120

This Spring Drive model from 1992 features a 40mm Hardlex-Coated Steel case. With its 19mm lug width and 13.5mm profile, it sits comfortably on most wrists. [seikata-wm-732646b7023e]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

13.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1992

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