Seiko Cal. 6648 - 897

Seiko 6648-897

The Seiko 6648-897 represents an important milestone in Seiko's 1985 lineup. Powered by the 6648 caliber with 33j jewels beating at 36,000 bph, it delivers a 62 hours power reserve. [seikata-wm-615dfcd92b49]

Also known as: Bullhead, Sportsmatic

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
39mm
Case Thickness
13.4mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
30m
Dial Color
White
Jewels
33j
Frequency
36,000 bph
Power Reserve
62 hours
Year
1985

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