Seiko Cal. 6312 - 487

The Seiko 6312-487 represents an important milestone in Seiko's 1979 lineup. It features a Burgundy dial protected by a Hardlex crystal and offers 140m of water resistance. [seikata-wm-f24a98fc4e4f]

Also known as: Helmet, Crown

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

14.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

140m

Dial Color

Burgundy

Jewels

31j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1979

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