Seiko Cal. 6649 - 278

The Seiko 6649-278 represents an important milestone in Seiko's 1991 lineup. Powered by the 6649 caliber with 33j jewels beating at 28,800 bph, it delivers a 53 hours power reserve. [seikata-wm-60ae67eb1bbf]

Also known as: Sportsmatic, Arnie

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

15.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

90m

Dial Color

Black

Jewels

33j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1991

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