Seiko Cal. 4427 - 859

Released in 1965, the Cal. 4427 with design code 859 was part of Seiko's domestic market collection. Powered by the 4427 caliber with 29j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-e877297ab3bb]

Also known as: Tuna, Rally

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

43mm

Case Thickness

8.5mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Cream

Jewels

29j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1965

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