Seiko Cal. 6648 - 148

The Seiko 6648-148 represents an important milestone in Seiko's 1974 lineup. Powered by the 6648 caliber with 24j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-492877c73d5d]

Also known as: Goldfeather, Sportsmatic

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

12.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1974

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