Seiko Cal. 3878 - 418

This Solar model from 1988 features a 37mm Hardlex-Coated Steel case. It features a White dial protected by a Sapphire crystal and offers 70m of water resistance. [seikata-wm-51837345ec6f]

Also known as: Sumo, Bullhead

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

10.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

70m

Dial Color

White

Jewels

29j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1988

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