Seiko Cal. 6390 - 189

The Seiko 6390-189 represents an important milestone in Seiko's 1989 lineup. It features a Black dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-38a9b7e2bf84]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

36mm

Case Thickness

10.0mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Black

Jewels

32j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1989

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