Seiko Cal. 5657 - 104

The Seiko 5657-104 represents an important milestone in Seiko's 1976 lineup. The Fixed bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-225cbf282df5]

Also known as: UFO

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

15.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

30m

Dial Color

Burgundy

Jewels

20j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1976

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