Seiko Cal. 6634 - 227

The Seiko 6634-227 represents an important milestone in Seiko's 1989 lineup. The Rotating bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-1eaf8316a00b]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

34mm

Case Thickness

9.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

100m

Dial Color

White

Jewels

29j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1989

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