Seiko Cal. 3821 - 878

The Seiko 3821-878 represents an important milestone in Seiko's 1998 lineup. Powered by the 3821 caliber with 19j jewels beating at 36,000 bph, it delivers a 69 hours power reserve. [seikata-wm-f7766ee9b6d2]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

35mm

Case Thickness

12.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Black

Jewels

19j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1998

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