Seiko Cal. 3862 - 821

The Seiko 3862-821 represents an important milestone in Seiko's 1973 lineup. Powered by the 3862 caliber with 24j jewels beating at 21,600 bph, it delivers a 39 hours power reserve. [seikata-wm-a9e4877ec2d0]

Also known as: Sumo, World Timer

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

8.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

130m

Dial Color

Burgundy

Jewels

24j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1973

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