Seiko Cal. 3821 - 670

The 3821-670 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 3821 caliber with 28j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-147db20db852]

Also known as: Shogun

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

8.6mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Silver

Jewels

28j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1980

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