Seiko Cal. 4443 - 850

The Seiko 4443-850 represents an important milestone in Seiko's 1977 lineup. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 90m of water resistance. [seikata-wm-0ca74c938ba8]

Also known as: Bullhead, UFO

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

39mm

Case Thickness

8.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1977

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