Seiko Cal. 5666 - 541

The 5666-541 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Silver dial protected by a Hardlex crystal and offers 140m of water resistance. [seikata-wm-07e50c459670]

Also known as: Crown

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

35mm

Case Thickness

11.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Silver

Jewels

30j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1981

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