Seiko Cal. 4521 - 693

The Seiko 4521-693 represents an important milestone in Seiko's 1968 lineup. It features a Green dial protected by a Acrylic crystal and offers 200m of water resistance. [seikata-wm-fde2c8564850]

Also known as: Samurai, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

38mm

Case Thickness

13.2mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Green

Jewels

35j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1968

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