Seiko Cal. 3821 - 706

Seiko 3821-706

The 3821-706 is a sought-after Automatic piece from Seiko's golden era. With its 18mm lug width and 10.6mm profile, it sits comfortably on most wrists. [seikata-wm-3cc21e7f72a8]

Also known as: Sportsmatic

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
39mm
Case Thickness
10.6mm
Lug Width
18mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
40m
Dial Color
Black
Jewels
33j
Frequency
28,800 bph
Power Reserve
45 hours
Year
1981

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seikata-wm-3cc21e7f72a8