Seiko Cal. 5687 - 538

The Seiko 5687-538 represents an important milestone in Seiko's 1990 lineup. The Bidirectional bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-ad3babf9a4f0]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

35mm

Case Thickness

10.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

50m

Dial Color

White

Jewels

28j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1990

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