Seiko Cal. 3861 - 500

Released in 1966, the Cal. 3861 with design code 500 was part of Seiko's domestic market collection. The Coin-Edge bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-53dec81710ce]

Also known as: Monster, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

13.6mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1966

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