Seiko Cal. 6637 - 102

The Seiko 6637-102 represents an important milestone in Seiko's 1978 lineup. It features a Navy dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-8f31e9879888]

Also known as: Golden Tuna

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

9.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Navy

Jewels

34j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1978

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