Seiko Cal. 3831 - 986

Released in 1976, the Cal. 3831 with design code 986 was part of Seiko's domestic market collection. It features a Cream dial protected by a Sapphire crystal and offers 50m of water resistance. [seikata-wm-7dfc1613da30]

Also known as: Bullhead, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

10.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

50m

Dial Color

Cream

Jewels

27j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1976

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