Seiko Cal. 7011 - 878

This Spring Drive model from 1984 features a 44mm Gold-Plated case. It features a Navy dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-924c73ce2d1d]

Also known as: Silverwave, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

10.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

140m

Dial Color

Navy

Jewels

31j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1984

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