Seiko Cal. 6635 - 271

The Seiko 6635-271 represents an important milestone in Seiko's 1986 lineup. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-44fa30476e81]

Also known as: Baby Tuna

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

40mm

Case Thickness

15.2mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1986

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