Seiko Cal. 5631 - 655

Seiko 5631-655

The Seiko 5631-655 represents an important milestone in Seiko's 1981 lineup. Powered by the 5631 caliber with 34j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-9e6734f888ab]

Also known as: Pogue, Arnie

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
42mm
Case Thickness
15.5mm
Lug Width
18mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
80m
Dial Color
White
Jewels
34j
Frequency
21,600 bph
Power Reserve
55 hours
Year
1981

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