Seiko Cal. 0777 - 980

This Spring Drive model from 1968 features a 40mm Hardlex-Coated Steel case. It features a Black dial protected by a Acrylic crystal and offers 100m of water resistance. [seikata-wm-69ed04e60777]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

9.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

100m

Dial Color

Black

Jewels

23j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1968

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