Seiko Cal. 4490 - 644

This Hand-Winding model from 1999 features a 37mm PVD Black case. It features a Green dial protected by a Hardlex crystal and offers 110m of water resistance. [seikata-wm-cbf57b7e235d]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

37mm

Case Thickness

15.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Green

Jewels

34j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1999

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