Seiko Cal. 6371 - 633

Released in 1985, the Cal. 6371 with design code 633 was part of Seiko's domestic market collection. With its 19mm lug width and 13.0mm profile, it sits comfortably on most wrists. [seikata-wm-161cb98af284]

Also known as: Navigator, Crown

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

13.0mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

140m

Dial Color

Green

Jewels

34j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1985

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