Seiko Cal. 6637 - 672

The Seiko 6637-672 represents an important milestone in Seiko's 1991 lineup. It features a Silver dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-fd5d625fefb0]

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

11.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Silver

Jewels

28j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1991

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