Seiko Cal. 6648 - 642

The Seiko 6648-642 represents an important milestone in Seiko's 1990 lineup. With its 22mm lug width and 15.4mm profile, it sits comfortably on most wrists. [seikata-wm-7d3581b230a0]

Also known as: World Timer, Crown

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

40mm

Case Thickness

15.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Navy

Jewels

23j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1990

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