Seiko Cal. 4420 - 116

The Seiko 4420-116 represents an important milestone in Seiko's 1985 lineup. Powered by the 4420 caliber with 23j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-c7d4df3885a8]

Also known as: Bullhead

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

13.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

30m

Dial Color

Black

Jewels

23j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1985

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