Seiko Cal. 4578 - 374

The Seiko 4578-374 represents an important milestone in Seiko's 1976 lineup. Powered by the 4578 caliber with 17j jewels beating at 28,800 bph, it delivers a 53 hours power reserve. [seikata-wm-a07da6b7a746]

Also known as: Bullhead, Bellmatic

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

9.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Champagne

Jewels

17j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1976

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