Seiko Cal. 6383 - 639

The Seiko 6383-639 represents an important milestone in Seiko's 1971 lineup. It features a Black dial protected by a Hardlex crystal and offers 50m of water resistance. [seikata-wm-d24ab203f0ff]

Also known as: Monster, Sportsmatic

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

45mm

Case Thickness

10.0mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

50m

Dial Color

Black

Jewels

28j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1971

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