Seiko Cal. 4578 - 431

The Seiko 4578-431 represents an important milestone in Seiko's 1991 lineup. Powered by the 4578 caliber with 22j jewels beating at 36,000 bph, it delivers a 47 hours power reserve. [seikata-wm-93c5eaa4cbe6]

Also known as: Bullhead, Emperor

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

12.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

White

Jewels

22j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1991

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