Seiko Cal. 5617 - 749

The Seiko 5617-749 represents an important milestone in Seiko's 1967 lineup. The Inner Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-1a725d119dac]

Also known as: Helmet

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

39mm

Case Thickness

11.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Black

Jewels

23j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1967

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