Seiko Cal. 5664 - 243

The Seiko 5664-243 represents an important milestone in Seiko's 1992 lineup. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-fc3b3eacc3ff]

Also known as: Bullhead, Navigator

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

12.9mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Navy

Jewels

25j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1992

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