Seiko Cal. 6634 - 163

The Seiko 6634-163 represents an important milestone in Seiko's 1988 lineup. The Inner Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-bf36ac593cd4]

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

39mm

Case Thickness

13.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Burgundy

Jewels

32j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1988

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