Seiko Cal. 5687 - 381

The Seiko 5687-381 represents an important milestone in Seiko's 1985 lineup. It features a Black dial protected by a Sapphire crystal and offers 200m of water resistance. [seikata-wm-87f9aca37d8f]

Also known as: Silverwave

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

10.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Black

Jewels

28j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1985

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