Seiko Cal. 6377 - 704

This Spring Drive model from 1970 features a 36mm Hardlex-Coated Steel case. It features a Black dial protected by a Hardlex crystal and offers 170m of water resistance. [seikata-wm-4aa277ef0680]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

11.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Black

Jewels

22j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1970

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