Seiko Cal. 0766 - 163

This Spring Drive model from 1971 features a 46mm Two-Tone case. It features a Navy dial protected by a Hardlex crystal and offers 130m of water resistance. [seikata-wm-5d9c7528e608]

Also known as: Tuna, Bullhead

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

46mm

Case Thickness

11.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Navy

Jewels

21j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1971

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