Seiko Cal. 6311 - 404

This Automatic model from 1973 features a 38mm Hardlex-Coated Steel case. It features a Cream dial protected by a Acrylic crystal and offers 130m of water resistance. [seikata-wm-bee312926acd]

Also known as: Helmet, Golden Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

13.8mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

130m

Dial Color

Cream

Jewels

20j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1973

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