Seiko Cal. 6397 - 576

The Seiko 6397-576 represents an important milestone in Seiko's 1969 lineup. With its 22mm lug width and 14.4mm profile, it sits comfortably on most wrists. [seikata-wm-23d01c60e43f]

Also known as: Sumo, Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

14.4mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Navy

Jewels

33j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1969

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