Seiko Cal. 6397 - 402

The Seiko 6397-402 represents an important milestone in Seiko's 1968 lineup. The Bidirectional bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-c53c6541c4db]

Also known as: UFO, Crown

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

37mm

Case Thickness

8.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Navy

Jewels

18j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1968

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