Seiko Cal. 5231 - 603

The Seiko 5231-603 represents an important milestone in Seiko's 1989 lineup. With its 22mm lug width and 9.6mm profile, it sits comfortably on most wrists. [seikata-wm-7d27a0a9c155]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

38mm

Case Thickness

9.6mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

30m

Dial Color

Green

Jewels

26j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1989

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