Seiko Cal. 3821 - 672

Seiko 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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