Seiko Cal. 3821 - 590

The 3821-590 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 3821 caliber with 35j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-33054742db62]

Also known as: UFO, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

10.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1985

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