Seiko Cal. 6690 - 107

This Spring Drive model from 1987 features a 40mm Hardlex-Coated Steel case. It features a Champagne dial protected by a Sapphire crystal and offers 80m of water resistance. [seikata-wm-70248d989395]

Also known as: Sumo, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

8.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Champagne

Jewels

26j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1987

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