Seiko Cal. 6397 - 357

The 6397-357 is a sought-after Automatic piece from Seiko's golden era. It features a Green dial protected by a Acrylic crystal and offers 90m of water resistance. [seikata-wm-666e5b93cf13]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

41mm

Case Thickness

11.3mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

90m

Dial Color

Green

Jewels

28j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1982

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