Seiko Cal. 6666 - 501

This Spring Drive model from 1981 features a 43mm Two-Tone case. It features a Green dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-19be8df4dfa5]

Also known as: Bullhead, Navigator

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

43mm

Case Thickness

11.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Green

Jewels

29j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1981

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