Seiko Cal. 6312 - 877

The Seiko 6312-877 represents an important milestone in Seiko's 1982 lineup. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-9c2ee52aba49]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

13.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Silver

Jewels

30j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1982

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