Seiko Cal. 5644 - 922

Seiko 5644-922

The Seiko 5644-922 represents an important milestone in Seiko's 1985 lineup. Powered by the 5644 caliber with 21j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-2854743ea58a]

Also known as: Turtle, Navigator

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
35mm
Case Thickness
10.6mm
Lug Width
19mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
120m
Dial Color
Champagne
Jewels
21j
Frequency
28,800 bph
Power Reserve
37 hours
Year
1985

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