Seiko Cal. 4521 - 678

This Spring Drive model from 1993 features a 35mm Titanium case. The Inner Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-c227155c2423]

Also known as: UFO, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

35mm

Case Thickness

12.0mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Black

Jewels

23j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1993

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