Seiko Cal. 4420 - 781

The Seiko 4420-781 represents an important milestone in Seiko's 1984 lineup. Powered by the 4420 caliber with 33j jewels beating at 36,000 bph, it delivers a 43 hours power reserve. [seikata-wm-5eac0a7ae5df]

Also known as: Golden Tuna

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

10.5mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1984

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