Seiko Cal. 3878 - 655

Released in 1966, the Cal. 3878 with design code 655 was part of Seiko's domestic market collection. With its 22mm lug width and 13.6mm profile, it sits comfortably on most wrists. [seikata-wm-2632994bf1cc]

Also known as: Emperor, Arnie

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

13.6mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

170m

Dial Color

Green

Jewels

17j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1966

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