Seiko Cal. 3831 - 355

Released in 1966, the Cal. 3831 with design code 355 was part of Seiko's domestic market collection. With its 18mm lug width and 15.6mm profile, it sits comfortably on most wrists. [seikata-wm-b7a5b61ad3ee]

Also known as: Sea Horse, Baby Tuna

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

15.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Navy

Jewels

25j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1966

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