Seiko Cal. 3861 - 780

Released in 1979, the Cal. 3861 with design code 780 was part of Seiko's domestic market collection. The Coin-Edge bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-1e86bf103cfb]

Also known as: Golden Tuna, Emperor

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

42mm

Case Thickness

10.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1979

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