Seiko Cal. 6311 - 666

This Spring Drive model from 1981 features a 41mm Two-Tone case. It features a Burgundy dial protected by a Acrylic crystal and offers 140m of water resistance. [seikata-wm-aac0ed029744]

Also known as: World Timer, Navigator

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

41mm

Case Thickness

8.1mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

140m

Dial Color

Burgundy

Jewels

17j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1981

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