Seiko Cal. 3831 - 902

This Spring Drive model from 1983 features a 43mm PVD Black case. It features a Navy dial protected by a Sapphire crystal and offers 70m of water resistance. [seikata-wm-1eb3abc43a92]

Also known as: Silverwave

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

43mm

Case Thickness

12.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Navy

Jewels

28j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1983

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