Seiko Cal. 6687 - 678

This Quartz model from 1971 features a 45mm Stainless Steel case. It features a Navy dial protected by a Hardlex crystal and offers 140m of water resistance. [seikata-wm-9f94dcaf97be]

Also known as: Golden Tuna

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

14.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

140m

Dial Color

Navy

Jewels

17j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1971

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