Seiko Cal. 3890 - 321

The 3890-321 is a sought-after Quartz piece from Seiko's golden era. Powered by the 3890 caliber with 26j jewels beating at 28,800 bph, it delivers a 60 hours power reserve. [seikata-wm-3d36547fee09]

Also known as: Shogun

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

11.7mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Black

Jewels

26j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1979

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