Seiko Cal. 4437 - 166

Released in 1975, the Cal. 4437 with design code 166 was part of Seiko's domestic market collection. With its 22mm lug width and 14.8mm profile, it sits comfortably on most wrists. [seikata-wm-cf8d7df83ece]

Also known as: Crown

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

41mm

Case Thickness

14.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1975

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