Seiko Cal. 4450 - 271

The Seiko 4450-271 represents an important milestone in Seiko's 1971 lineup. Powered by the 4450 caliber with 20j jewels beating at 36,000 bph, it delivers a 47 hours power reserve. [seikata-wm-dbc36dd497a4]

Also known as: Sumo, Sportsmatic

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

10.1mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

White

Jewels

20j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1971

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