Seiko Cal. 5683 - 837

The Seiko 5683-837 represents an important milestone in Seiko's 1980 lineup. The Fixed bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-5b6617e7b9b5]

Also known as: Crown, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

11.1mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

90m

Dial Color

Navy

Jewels

23j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1980

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