Seiko Cal. 3840 - 823

The Seiko 3840-823 represents an important milestone in Seiko's 1983 lineup. Powered by the 3840 caliber with 30j jewels beating at 36,000 bph, it delivers a 52 hours power reserve. [seikata-wm-1a1140824e43]

Also known as: UFO

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

45mm

Case Thickness

14.7mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

90m

Dial Color

Cream

Jewels

30j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1983

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