Seiko Cal. 4578 - 838

The Seiko 4578-838 represents an important milestone in Seiko's 1980 lineup. Powered by the 4578 caliber with 32j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-92291c8bdf81]

Also known as: Shogun, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

12.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Champagne

Jewels

32j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1980

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