Seiko Cal. 6689 - 777

This Spring Drive model from 1978 features a 37mm Titanium case. It features a Cream dial protected by a Acrylic crystal and offers 80m of water resistance. [seikata-wm-de35c0c5baf2]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

37mm

Case Thickness

14.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

80m

Dial Color

Cream

Jewels

31j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1978

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