Seiko Cal. 6390 - 709

The 6390-709 is a sought-after Automatic piece from Seiko's golden era. It features a Green dial protected by a Mineral crystal and offers 130m of water resistance. [seikata-wm-ed51b414d837]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

15.8mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

130m

Dial Color

Green

Jewels

22j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1988

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