Seiko Cal. 5661 - 647

The Seiko 5661-647 represents an important milestone in Seiko's 1988 lineup. The Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-3bb065f9f2f0]

Also known as: Shogun, UFO

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

39mm

Case Thickness

10.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

120m

Dial Color

Burgundy

Jewels

28j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1988

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