Seiko Cal. 6312 - 983

The Seiko 6312-983 represents an important milestone in Seiko's 1991 lineup. The Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-9bf3be9b74ec]

Also known as: Sea Horse, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

15.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

190m

Dial Color

Champagne

Jewels

21j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1991

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