Seiko Cal. 5644 - 707

Seiko 5644-707

The Seiko 5644-707 represents an important milestone in Seiko's 1995 lineup. Powered by the 5644 caliber with 25j jewels beating at 21,600 bph, it delivers a 37 hours power reserve. [seikata-wm-f6992dfa4c37]

Also known as: UFO, Sea Horse

Specifications

Movement
Quartz
Case Material
Stainless Steel
Case Width
43mm
Case Thickness
14.4mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
160m
Dial Color
Blue Sunburst
Jewels
25j
Frequency
21,600 bph
Power Reserve
37 hours
Year
1995

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