Seiko Cal. 5683 - 642

The Seiko 5683-642 represents an important milestone in Seiko's 1978 lineup. The Fixed bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-e9803f0e3144]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

39mm

Case Thickness

10.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

130m

Dial Color

Black

Jewels

36j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1978

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