Seiko Cal. 4518 - 539

This Spring Drive model from 1982 features a 37mm PVD Black case. It features a Champagne dial protected by a Mineral crystal and offers 140m of water resistance. [seikata-wm-ce56a244fb0c]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

14.9mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

140m

Dial Color

Champagne

Jewels

17j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1982

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