Seiko Cal. 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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