Seiko Cal. 6691 - 697

This Automatic model from 1981 features a 45mm Two-Tone case. It features a Black dial protected by a Acrylic crystal and offers 110m of water resistance. [seikata-wm-7b5f7a8af567]

Also known as: Monster, Golden Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

45mm

Case Thickness

11.1mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

110m

Dial Color

Black

Jewels

23j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1981

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