Seiko Cal. 3856 - 504

The Seiko 3856-504 represents an important milestone in Seiko's 1965 lineup. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 140m of water resistance. [seikata-wm-e9723e2e810a]

Also known as: Crown

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

15.1mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1965

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