Seiko Cal. 6663 - 903

The Seiko 6663-903 represents an important milestone in Seiko's 1996 lineup. With its 18mm lug width and 10.5mm profile, it sits comfortably on most wrists. [seikata-wm-fccfdcbf1e2c]

Also known as: Rally, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

10.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Navy

Jewels

34j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1996

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