Seiko Cal. 4427 - 779

The Seiko 4427-779 represents an important milestone in Seiko's 1987 lineup. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 50m of water resistance. [seikata-wm-5b8be2e38ade]

Also known as: Crown

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

8.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1987

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