Seiko Cal. 4520 - 578

This Hand-Winding model from 1996 features a 37mm Titanium case. Powered by the 4520 caliber with 36j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-0b0bc9e6ac56]

Also known as: Sportsmatic, Emperor

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

37mm

Case Thickness

14.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

140m

Dial Color

Green

Jewels

36j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1996

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