Seiko Cal. 4574 - 632

Seiko 4574-632

The Seiko 4574-632 represents an important milestone in Seiko's 1975 lineup. Powered by the 4574 caliber with 17j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-76f580ddb2d7]

Also known as: Sumo, Navigator

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
38mm
Case Thickness
13.2mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
170m
Dial Color
Navy
Jewels
17j
Frequency
36,000 bph
Power Reserve
37 hours
Year
1975

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