Seiko Cal. 3887 - 969

This Spring Drive model from 1971 features a 36mm Stainless Steel case. It features a Green dial protected by a Sapphire crystal and offers 130m of water resistance. [seikata-wm-a370e5037ea7]

Also known as: Sportsmatic, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

14.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Green

Jewels

18j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1971

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