Seiko Cal. 6311 - 841

This Spring Drive model from 1985 features a 45mm Hardlex-Coated Steel case. With its 21mm lug width and 15.0mm profile, it sits comfortably on most wrists. [seikata-wm-9a611347686e]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

15.0mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

100m

Dial Color

Green

Jewels

28j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1985

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