Seiko Cal. 6397 - 630

The Seiko 6397-630 represents an important milestone in Seiko's 1967 lineup. Powered by the 6397 caliber with 20j jewels beating at 28,800 bph, it delivers a 68 hours power reserve. [seikata-wm-3ae58f40ea53]

Also known as: Rally, Crown

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

46mm

Case Thickness

14.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

160m

Dial Color

Black

Jewels

20j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1967

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