Seiko Cal. 4487 - 642

This Spring Drive model from 1976 features a 42mm Titanium case. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 150m of water resistance. [seikata-wm-119e409b5acc]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

42mm

Case Thickness

13.2mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1976

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