Seiko Cal. 4447 - 820

The Seiko 4447-820 represents an important milestone in Seiko's 1986 lineup. With its 22mm lug width and 14.8mm profile, it sits comfortably on most wrists. [seikata-wm-a0e6cc88bafa]

Also known as: Bullhead, Silverwave

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

34mm

Case Thickness

14.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Navy

Jewels

36j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1986

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