Seiko Cal. 6310 - 312

This Quartz model from 1976 features a 34mm PVD Black case. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 40m of water resistance. [seikata-wm-e2ecc8c8a873]

Also known as: Bullhead, Baby Tuna

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

34mm

Case Thickness

12.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

32j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1976

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