Seiko Cal. 3818 - 353

This Spring Drive model from 1980 features a 35mm Two-Tone case. It features a White dial protected by a Sapphire crystal and offers 80m of water resistance. [seikata-wm-6c062669647b]

Also known as: Sumo, Helmet

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

35mm

Case Thickness

10.6mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

80m

Dial Color

White

Jewels

33j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1980

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