Seiko Cal. 4437 - 190

The 4437-190 is a sought-after Hand-Winding piece from Seiko's golden era. With its 22mm lug width and 9.5mm profile, it sits comfortably on most wrists. [seikata-wm-ad24035bbee2]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

35mm

Case Thickness

9.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

40m

Dial Color

Green

Jewels

36j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1997

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