Seiko Cal. 4448 - 563

This Automatic model from 1975 features a 41mm Hardlex-Coated Steel case. Powered by the 4448 caliber with 31j jewels beating at 36,000 bph, it delivers a 58 hours power reserve. [seikata-wm-f3890c3812b8]

Also known as: Sportsmatic

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

8.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

100m

Dial Color

Black

Jewels

31j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1975

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