Seiko Cal. 3840 - 150

The Seiko 3840-150 represents an important milestone in Seiko's 1981 lineup. With its 22mm lug width and 10.4mm profile, it sits comfortably on most wrists. [seikata-wm-7072ce1fb665]

Also known as: Samurai, Sumo

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

10.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

30m

Dial Color

Cream

Jewels

17j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1981

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