Seiko Cal. 3840 - 163

The Seiko 3840-163 represents an important milestone in Seiko's 1974 lineup. With its 22mm lug width and 10.7mm profile, it sits comfortably on most wrists. [seikata-wm-ecfe4b99f374]

Also known as: Samurai, UFO

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

36mm

Case Thickness

10.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

180m

Dial Color

Silver

Jewels

29j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1974

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