Seiko Cal. 6648 - 577

This Spring Drive model from 1998 features a 42mm Hardlex-Coated Steel case. With its 20mm lug width and 9.2mm profile, it sits comfortably on most wrists. [seikata-wm-f60c38a4a7b8]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

9.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Cream

Jewels

34j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1998

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