Seiko Cal. 4597 - 632

Seiko 4597-632

Released in 1978, the Cal. 4597 with design code 632 was part of Seiko's domestic market collection. Powered by the 4597 caliber with 26j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-8c80650afbc4]

Also known as: Sumo, Arnie

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
34mm
Case Thickness
10.0mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
110m
Dial Color
Cream
Jewels
26j
Frequency
28,800 bph
Power Reserve
40 hours
Year
1978

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