Seiko Cal. 3874 - 506

The Seiko 3874-506 represents an important milestone in Seiko's 1986 lineup. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 70m of water resistance. [seikata-wm-de06e5ec54b5]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

10.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1986

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