Seiko Cal. 6687 - 847

The Seiko 6687-847 represents an important milestone in Seiko's 1980 lineup. It features a Champagne dial protected by a Sapphire crystal and offers 90m of water resistance. [seikata-wm-a22b23736762]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

15.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Champagne

Jewels

27j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1980

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