Seiko Cal. 4420 - 781

Seiko 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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