Seiko Cal. 3890 - 780

The Seiko 3890-780 represents an important milestone in Seiko's 1976 lineup. It features a Blue Sunburst dial protected by a Mineral crystal and offers 130m of water resistance. [seikata-wm-acfd2c1d0e94]

Also known as: Tuna, Bullhead

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

44mm

Case Thickness

14.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1976

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