Seiko Cal. 4439 - 485

This Hand-Winding model from 1966 features a 40mm PVD Black case. With its 18mm lug width and 11.3mm profile, it sits comfortably on most wrists. [seikata-wm-d95172ec1f32]

Also known as: Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

40mm

Case Thickness

11.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Navy

Jewels

20j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1966

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