Seiko Cal. 0778 - 321

The Seiko 0778-321 represents an important milestone in Seiko's 1990 lineup. Powered by the 0778 caliber with 21j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-4c0decf8ba8f]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

15.8mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Cream

Jewels

21j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1990

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