Seiko Cal. 3821 - 621

The Seiko 3821-621 represents an important milestone in Seiko's 1982 lineup. It features a Silver dial protected by a Acrylic crystal and offers 160m of water resistance. [seikata-wm-8d66c5ebcbdc]

Also known as: Tuna, Navigator

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

13.6mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

160m

Dial Color

Silver

Jewels

23j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1982

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