Seiko Cal. 5271 - 576

This Hand-Winding model from 1983 features a 37mm Hardlex-Coated Steel case. It features a Silver dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-2159805a9363]

Also known as: Sumo, World Timer

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

12.3mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Silver

Jewels

20j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1983

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