Seiko Cal. 3878 - 650

The Seiko 3878-650 represents an important milestone in Seiko's 1969 lineup. With its 22mm lug width and 10.2mm profile, it sits comfortably on most wrists. [seikata-wm-7d9d93f7fb00]

Also known as: Shogun

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

10.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Silver

Jewels

33j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1969

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