Seiko Cal. 4439 - 648

This Automatic model from 1975 features a 45mm Two-Tone case. With its 22mm lug width and 10.1mm profile, it sits comfortably on most wrists. [seikata-wm-83b51be471b5]

Also known as: Sumo, Sportsmatic

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

45mm

Case Thickness

10.1mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

180m

Dial Color

Burgundy

Jewels

18j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1975

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