Seiko Cal. 4525 - 840

The 4525-840 is a sought-after Quartz piece from Seiko's golden era. It features a White dial protected by a Sapphire crystal and offers 100m of water resistance. [seikata-wm-9bf17aeccc79]

Also known as: Helmet

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

34mm

Case Thickness

12.6mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

100m

Dial Color

White

Jewels

30j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1989

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