Seiko Cal. 3821 - 722

This Quartz model from 1970 features a 42mm PVD Black case. Powered by the 3821 caliber with 23j jewels beating at 28,800 bph, it delivers a 62 hours power reserve. [seikata-wm-9f25438ecd6a]

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

42mm

Case Thickness

10.0mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Green

Jewels

23j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1970

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