Seiko Cal. 6659 - 420

The Seiko 6659-420 represents an important milestone in Seiko's 1988 lineup. The Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-c19fe09b014d]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

39mm

Case Thickness

11.2mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

160m

Dial Color

Black

Jewels

23j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1988

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