Seiko Cal. 3857 - 104

Released in 1972, the Cal. 3857 with design code 104 was part of Seiko's domestic market collection. Powered by the 3857 caliber with 21j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-8caf82a43ec8]

Also known as: Shogun, UFO

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

40mm

Case Thickness

13.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Green

Jewels

21j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1972

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