Seiko Cal. 5617 - 939

The Seiko 5617-939 represents an important milestone in Seiko's 1987 lineup. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 170m of water resistance. [seikata-wm-50d9f79c5dca]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

46mm

Case Thickness

11.0mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1987

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