Seiko Cal. 4521 - 177

The 4521-177 is a sought-after Spring Drive piece from Seiko's golden era. It features a Cream dial protected by a Hardlex crystal and offers 150m of water resistance. [seikata-wm-00663223d2c5]

Also known as: Pogue, Helmet

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

34mm

Case Thickness

10.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

150m

Dial Color

Cream

Jewels

25j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1981

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