Seiko Cal. 3873 - 840

This Quartz model from 1971 features a 44mm Hardlex-Coated Steel case. It features a White dial protected by a Sapphire crystal and offers 120m of water resistance. [seikata-wm-9bdba38be729]

Also known as: Monster, Sumo

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

15.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

White

Jewels

17j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1971

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