Seiko Cal. 4437 - 396

The Seiko 4437-396 represents an important milestone in Seiko's 1997 lineup. With its 19mm lug width and 13.2mm profile, it sits comfortably on most wrists. [seikata-wm-be9b93d946db]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

41mm

Case Thickness

13.2mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

170m

Dial Color

Navy

Jewels

27j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1997

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