Seiko Cal. 5641 - 624

The Seiko 5641-624 represents an important milestone in Seiko's 1989 lineup. The Inner Rotating bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-e8f3ae79764d]

Also known as: Flighty

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

36mm

Case Thickness

9.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1989

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