Seiko Cal. 4578 - 740

The Seiko 4578-740 represents an important milestone in Seiko's 1990 lineup. Powered by the 4578 caliber with 19j jewels beating at 28,800 bph, it delivers a 70 hours power reserve. [seikata-wm-f3bb65f6f501]

Also known as: Samurai, UFO

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

11.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Silver

Jewels

19j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1990

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