Seiko Cal. 3821 - 690

The 3821-690 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3821 caliber with 33j jewels beating at 36,000 bph, it delivers a 42 hours power reserve. [seikata-wm-74d8b005ea6f]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

41mm

Case Thickness

10.0mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1994

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