Seiko Cal. 4426 - 820

Released in 1978, the Cal. 4426 with design code 820 was part of Seiko's domestic market collection. Powered by the 4426 caliber with 29j jewels beating at 21,600 bph, it delivers a 45 hours power reserve. [seikata-wm-770b0583df5d]

Also known as: Navigator, Emperor

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

42mm

Case Thickness

15.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1978

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