Seiko Cal. 3830 - 640

The Seiko 3830-640 represents an important milestone in Seiko's 1996 lineup. The Fixed bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-934cbc46be1b]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

45mm

Case Thickness

12.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

100m

Dial Color

Burgundy

Jewels

33j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1996

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