Seiko Cal. 5272 - 447

Seiko 5272-447

The Seiko 5272-447 represents an important milestone in Seiko's 1970 lineup. Powered by the 5272 caliber with 20j jewels beating at 36,000 bph, it delivers a 48 hours power reserve. [seikata-wm-f4c5db4eae14]

Also known as: Sumo, Bellmatic

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
37mm
Case Thickness
9.6mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
80m
Dial Color
Blue Sunburst
Jewels
20j
Frequency
36,000 bph
Power Reserve
48 hours
Year
1970

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