Seiko Cal. 4477 - 719

The Seiko 4477-719 represents an important milestone in Seiko's 1987 lineup. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 190m of water resistance. [seikata-wm-ff3ca7ba400f]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

9.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1987

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