Seiko Cal. 6391 - 413

The 6391-413 is a sought-after Spring Drive piece from Seiko's golden era. It features a Black dial protected by a Sapphire crystal and offers 70m of water resistance. [seikata-wm-45638b921b7c]

Also known as: Shogun, Panda

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

8.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Black

Jewels

20j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1971

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