Seiko Cal. 3831 - 773

The Seiko 3831-773 represents an important milestone in Seiko's 1977 lineup. It features a Black dial protected by a Sapphire crystal and offers 200m of water resistance. [seikata-wm-8c2b12dcd8a4]

Also known as: Monster, Silverwave

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

10.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Black

Jewels

26j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1977

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