Seiko Cal. 6397 - 521

The Seiko 6397-521 represents an important milestone in Seiko's 1972 lineup. Powered by the 6397 caliber with 19j jewels beating at 21,600 bph, it delivers a 52 hours power reserve. [seikata-wm-02300fe49a94]

Also known as: Turtle, Panda

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

35mm

Case Thickness

11.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Burgundy

Jewels

19j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1972

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