Seiko Cal. 6393 - 778

This Hand-Winding model from 1993 features a 40mm Hardlex-Coated Steel case. It features a Black dial protected by a Sapphire crystal and offers 70m of water resistance. [seikata-wm-9574f3be2ab8]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

15.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

70m

Dial Color

Black

Jewels

25j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1993

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