Seiko Cal. 3821 - 934

This Spring Drive model from 1992 features a 44mm PVD Black case. It features a Navy dial protected by a Sapphire crystal and offers 110m of water resistance. [seikata-wm-5aa6d2b23d11]

Also known as: Monster, Sumo

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

14.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Navy

Jewels

18j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1992

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