Seiko Cal. 3839 - 723

The 3839-723 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 3839 caliber with 32j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-82ee52e60657]

Also known as: Sumo, Bullhead

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

11.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Burgundy

Jewels

32j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1979

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