Seiko Cal. 3831 - 437

Released in 1995, the Cal. 3831 with design code 437 was part of Seiko's domestic market collection. It features a Black dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-230ed361f986]

Also known as: Tuna, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

43mm

Case Thickness

15.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Black

Jewels

26j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1995

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