Seiko Cal. 4440 - 992

Released in 1974, the Cal. 4440 with design code 992 was part of Seiko's domestic market collection. With its 20mm lug width and 12.7mm profile, it sits comfortably on most wrists. [seikata-wm-8f0ec6bd6790]

Also known as: Sportsmatic, Navigator

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

12.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

White

Jewels

27j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1974

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