Seiko Cal. 5663 - 327

The Seiko 5663-327 represents an important milestone in Seiko's 1989 lineup. The Rotating bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-36b6152df0f9]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

36mm

Case Thickness

9.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

70m

Dial Color

Black

Jewels

18j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1989

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