Seiko Cal. 3856 - 366

The 3856-366 is a sought-after Quartz piece from Seiko's golden era. Powered by the 3856 caliber with 21j jewels beating at 21,600 bph, it delivers a 45 hours power reserve. [seikata-wm-b95fb667e36a]

Also known as: Sumo, Silverwave

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

10.3mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Black

Jewels

21j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1970

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