Seiko Cal. 6651 - 644

Seiko 6651-644

The Seiko 6651-644 represents an important milestone in Seiko's 1991 lineup. Powered by the 6651 caliber with 18j jewels beating at 21,600 bph, it delivers a 68 hours power reserve. [seikata-wm-f838eef0739e]

Also known as: Turtle

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
43mm
Case Thickness
10.7mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
130m
Dial Color
Blue Sunburst
Jewels
18j
Frequency
21,600 bph
Power Reserve
68 hours
Year
1991

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