Seiko Cal. 3839 - 878

This Quartz model from 1979 features a 40mm Hardlex-Coated Steel case. It features a White dial protected by a Mineral crystal and offers 40m of water resistance. [seikata-wm-cfff6fa228e0]

Also known as: Sumo, Sea Horse

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

10.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

40m

Dial Color

White

Jewels

28j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1979

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