Seiko Cal. 4428 - 693

The Seiko 4428-693 represents an important milestone in Seiko's 1985 lineup. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 60m of water resistance. [seikata-wm-d69c535f7b4c]

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

34mm

Case Thickness

14.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1985

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