Seiko Cal. 3870 - 850

The 3870-850 is a sought-after Kinetic piece from Seiko's golden era. With its 18mm lug width and 15.5mm profile, it sits comfortably on most wrists. [seikata-wm-e01974f499f1]

Also known as: UFO

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

15.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

160m

Dial Color

Green

Jewels

28j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1974

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