Seiko Cal. 6310 - 810

This Quartz model from 1977 features a 44mm PVD Black case. It features a Black dial protected by a Hardlex crystal and offers 200m of water resistance. [seikata-wm-ef9c6f04ace4]

Also known as: Sumo

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

44mm

Case Thickness

8.3mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

200m

Dial Color

Black

Jewels

22j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1977

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