Seiko Cal. 5633 - 907

Seiko 5633-907

The Seiko 5633-907 represents an important milestone in Seiko's 1971 lineup. Powered by the 5633 caliber with 33j jewels beating at 28,800 bph, it delivers a 38 hours power reserve. [seikata-wm-3499e8937bdf]

Also known as: Sumo, Arnie

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
38mm
Case Thickness
14.1mm
Lug Width
22mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
200m
Dial Color
Cream
Jewels
33j
Frequency
28,800 bph
Power Reserve
38 hours
Year
1971

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