Seiko Cal. 4423 - 285

The 4423-285 is a sought-after Spring Drive piece from Seiko's golden era. With its 20mm lug width and 9.9mm profile, it sits comfortably on most wrists. [seikata-wm-03ec4d4bfb0f]

Also known as: Bullhead, Silverwave

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

35mm

Case Thickness

9.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Champagne

Jewels

24j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1986

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