Seiko Cal. 6390 - 320

The Seiko 6390-320 represents an important milestone in Seiko's 1971 lineup. It features a Black dial protected by a Mineral crystal and offers 120m of water resistance. [seikata-wm-852d72062960]

Also known as: Samurai

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

42mm

Case Thickness

9.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Black

Jewels

26j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1971

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