Seiko Cal. 3831 - 957

Released in 1983, the Cal. 3831 with design code 957 was part of Seiko's domestic market collection. It features a Navy dial protected by a Acrylic crystal and offers 90m of water resistance. [seikata-wm-a0ea97cbfce0]

Also known as: Turtle, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

35mm

Case Thickness

8.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

90m

Dial Color

Navy

Jewels

34j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1983

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