Seiko Cal. 6689 - 181

Released in 1979, the Cal. 6689 with design code 181 was part of Seiko's domestic market collection. It features a Cream dial protected by a Acrylic crystal and offers 110m of water resistance. [seikata-wm-2a9ec0ac5491]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

9.4mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Cream

Jewels

21j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1979

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