Seiko Cal. 5637 - 372

Seiko 5637-372

The Seiko 5637-372 represents an important milestone in Seiko's 1980 lineup. Powered by the 5637 caliber with 29j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-8122d7a3c9b5]

Also known as: Turtle, Sumo

Specifications

Movement
Quartz
Case Material
Two-Tone
Case Width
34mm
Case Thickness
15.2mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
90m
Dial Color
Blue Sunburst
Jewels
29j
Frequency
21,600 bph
Power Reserve
49 hours
Year
1980

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