Seiko Cal. 3847 - 742

The Seiko 3847-742 represents an important milestone in Seiko's 1967 lineup. With its 22mm lug width and 11.1mm profile, it sits comfortably on most wrists. [seikata-wm-8bb6631e7771]

Also known as: World Timer, Baby Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

11.1mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

130m

Dial Color

Burgundy

Jewels

36j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1967

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