Seiko Cal. 3856 - 139

The 3856-139 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 3856 caliber with 25j jewels beating at 21,600 bph, it delivers a 37 hours power reserve. [seikata-wm-19e2a6978aea]

Also known as: UFO, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

14.5mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Green

Jewels

25j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1988

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