Seiko Cal. 6637 - 667

The Seiko 6637-667 represents an important milestone in Seiko's 1989 lineup. It features a Burgundy dial protected by a Acrylic crystal and offers 60m of water resistance. [seikata-wm-fcb33d37bfe6]

Also known as: Monster

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

13.0mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

60m

Dial Color

Burgundy

Jewels

21j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1989

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