Seiko Cal. 6311 - 611

This Hand-Winding model from 1971 features a 38mm Hardlex-Coated Steel case. It features a Green dial protected by a Mineral crystal and offers 30m of water resistance. [seikata-wm-782f091d8194]

Also known as: Golden Tuna, Emperor

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

11.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

30m

Dial Color

Green

Jewels

34j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1971

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