Seiko Cal. 4521 - 509

This Spring Drive model from 1974 features a 45mm Titanium case. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 180m of water resistance. [seikata-wm-c0d69596b1ff]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

8.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1974

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