Seiko Cal. 3821 - 323

The 3821-323 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3821 caliber with 34j jewels beating at 28,800 bph, it delivers a 63 hours power reserve. [seikata-wm-1cfe672de1ba]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

9.7mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

120m

Dial Color

Burgundy

Jewels

34j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1988

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