Seiko Cal. 4437 - 365

The Seiko 4437-365 represents an important milestone in Seiko's 1969 lineup. With its 18mm lug width and 12.7mm profile, it sits comfortably on most wrists. [seikata-wm-f5882754641b]

Also known as: UFO, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

12.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Champagne

Jewels

23j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1969

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