Seiko Cal. 4550 - 187

The 4550-187 is a sought-after Spring Drive piece from Seiko's golden era. With its 19mm lug width and 9.5mm profile, it sits comfortably on most wrists. [seikata-wm-5ef00767cdd8]

Also known as: UFO, Navigator

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

39mm

Case Thickness

9.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

200m

Dial Color

Green

Jewels

26j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1996

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