Seiko Cal. 4531 - 905

The Seiko 4531-905 represents an important milestone in Seiko's 1985 lineup. With its 18mm lug width and 9.5mm profile, it sits comfortably on most wrists. [seikata-wm-36661f2c89d3]

Also known as: Baby Tuna

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

45mm

Case Thickness

9.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1985

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