Seiko Cal. 3813 - 201

This Quartz model from 1982 features a 37mm Hardlex-Coated Steel case. It features a Navy dial protected by a Sapphire crystal and offers 90m of water resistance. [seikata-wm-3de730949d23]

Also known as: Sumo

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

11.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

90m

Dial Color

Navy

Jewels

36j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1982

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