Seiko Cal. 4420 - 158

This Quartz model from 1981 features a 44mm Stainless Steel case. Powered by the 4420 caliber with 30j jewels beating at 28,800 bph, it delivers a 66 hours power reserve. [seikata-wm-ec0b29f2d2d0]

Also known as: Tuna

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

12.2mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

180m

Dial Color

Silver

Jewels

30j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1981

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