Seiko Cal. 6397 - 526

The 6397-526 is a sought-after Hand-Winding piece from Seiko's golden era. The Coin-Edge bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-7c219db8edad]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

12.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1984

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