Seiko Cal. 3840 - 313

The Seiko 3840-313 represents an important milestone in Seiko's 1989 lineup. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 100m of water resistance. [seikata-wm-606acc62b049]

Also known as: Helmet, Goldfeather

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

43mm

Case Thickness

9.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1989

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