Seiko Cal. 3821 - 672

The 3821-672 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3821 caliber with 18j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-d65df8f469b5]

Also known as: Sumo, Pogue

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

35mm

Case Thickness

8.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Burgundy

Jewels

18j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1972

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