Seiko Cal. 4578 - 493

The Seiko 4578-493 represents an important milestone in Seiko's 1989 lineup. Powered by the 4578 caliber with 24j jewels beating at 36,000 bph, it delivers a 49 hours power reserve. [seikata-wm-ddba2538a7d3]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

43mm

Case Thickness

11.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Green

Jewels

24j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1989

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