Seiko Cal. 3840 - 813

The Seiko 3840-813 represents an important milestone in Seiko's 1980 lineup. It features a Champagne dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-b48b577cd86f]

Also known as: Sportsmatic

Specifications

Movement

Solar

Case Material

Titanium

Case Width

42mm

Case Thickness

12.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

140m

Dial Color

Champagne

Jewels

22j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1980

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