Seiko Cal. 6397 - 689

The Seiko 6397-689 represents an important milestone in Seiko's 1966 lineup. The Rotating bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-d8db647444b3]

Also known as: UFO, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

12.9mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

70m

Dial Color

Green

Jewels

25j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1966

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