Seiko Cal. 6163 - 978

This Hand-Winding model from 1975 features a 44mm PVD Black case. It features a Champagne dial protected by a Acrylic crystal and offers 70m of water resistance. [seikata-wm-52316a6c0b18]

Also known as: Sumo, World Timer

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

44mm

Case Thickness

12.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

70m

Dial Color

Champagne

Jewels

18j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1975

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