Seiko Cal. 4580 - 578

This Hand-Winding model from 1985 features a 39mm Gold-Plated case. Powered by the 4580 caliber with 24j jewels beating at 28,800 bph, it delivers a 54 hours power reserve. [seikata-wm-ec2934aa67af]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

14.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Green

Jewels

24j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1985

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