Seiko Cal. 4428 - 390

The Seiko 4428-390 represents an important milestone in Seiko's 1982 lineup. It features a Silver dial protected by a Sapphire crystal and offers 60m of water resistance. [seikata-wm-e4a238bb6f49]

Also known as: Goldfeather

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

10.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Silver

Jewels

18j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1982

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