Seiko Cal. 6311 - 679

This Automatic model from 1966 features a 43mm Hardlex-Coated Steel case. It features a Green dial protected by a Acrylic crystal and offers 40m of water resistance. [seikata-wm-079587e900f6]

Also known as: Sea Horse

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

10.0mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

40m

Dial Color

Green

Jewels

33j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1966

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