Seiko Cal. 4428 - 401

The Seiko 4428-401 represents an important milestone in Seiko's 1979 lineup. It features a Silver dial protected by a Mineral crystal and offers 160m of water resistance. [seikata-wm-bb8e9207ce88]

Also known as: Emperor

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

11.6mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Silver

Jewels

23j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1979

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