Seiko Cal. 6644 - 781

Seiko 6644-781

The Seiko 6644-781 represents an important milestone in Seiko's 1988 lineup. Powered by the 6644 caliber with 19j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-b1cb1de87627]

Also known as: Monster, Pogue

Specifications

Movement
Hand-Winding
Case Material
Gold-Plated
Case Width
37mm
Case Thickness
10.9mm
Lug Width
21mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
110m
Dial Color
White
Jewels
19j
Frequency
28,800 bph
Power Reserve
36 hours
Year
1988

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