Seiko Cal. 6687 - 693

The Seiko 6687-693 represents an important milestone in Seiko's 1989 lineup. The Fixed bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-1c4e22e9945e]

Also known as: Bullhead

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

42mm

Case Thickness

11.3mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

90m

Dial Color

Navy

Jewels

21j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1989

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