Seiko Cal. 4570 - 684

This Hand-Winding model from 1984 features a 37mm PVD Black case. It features a Silver dial protected by a Hardlex crystal and offers 80m of water resistance. [seikata-wm-c6670171723d]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

37mm

Case Thickness

13.1mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

80m

Dial Color

Silver

Jewels

30j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1984

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