Seiko Cal. 6660 - 255

This Hand-Winding model from 1981 features a 36mm PVD Black case. It features a Green dial protected by a Hardlex crystal and offers 100m of water resistance. [seikata-wm-46bcfecf8b6b]

Also known as: Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

36mm

Case Thickness

11.3mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Green

Jewels

33j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1981

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