Seiko Cal. 3821 - 804

The 3821-804 is a sought-after Spring Drive piece from Seiko's golden era. With its 21mm lug width and 9.8mm profile, it sits comfortably on most wrists. [seikata-wm-66d2bca49e04]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

9.8mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

White

Jewels

21j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1990

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