Seiko Cal. 5646 - 371

The Seiko 5646-371 represents an important milestone in Seiko's 1984 lineup. The Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-28724fcd4dcc]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

39mm

Case Thickness

15.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1984

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