Seiko Cal. 6648 - 255

The Seiko 6648-255 represents an important milestone in Seiko's 1987 lineup. Powered by the 6648 caliber with 27j jewels beating at 36,000 bph, it delivers a 71 hours power reserve. [seikata-wm-9632aae72bb5]

Also known as: Crown, Flighty

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

13.4mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

40m

Dial Color

White

Jewels

27j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1987

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