Seiko Cal. 5617 - 731

The Seiko 5617-731 represents an important milestone in Seiko's 1980 lineup. The Inner Rotating bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-aae6e5e1135a]

Also known as: Shogun

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

36mm

Case Thickness

11.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Navy

Jewels

25j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1980

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