Seiko Cal. 7077 - 956

This Spring Drive model from 1983 features a 45mm Stainless Steel case. It features a Navy dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-1fa1504145c7]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

13.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Navy

Jewels

33j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1983

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