Seiko Cal. 4420 - 659

Released in 1970, the Cal. 4420 with design code 659 was part of Seiko's domestic market collection. With its 21mm lug width and 15.7mm profile, it sits comfortably on most wrists. [seikata-wm-a1f422ff4fa1]

Also known as: Helmet, Navigator

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

45mm

Case Thickness

15.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Champagne

Jewels

31j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1970

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