Seiko Cal. 4435 - 999

The 4435-999 is a sought-after Spring Drive piece from Seiko's golden era. It features a Black dial protected by a Acrylic crystal and offers 160m of water resistance. [seikata-wm-dcb531c2e7a8]

Also known as: Bullhead, Navigator

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

15.1mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

160m

Dial Color

Black

Jewels

17j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1990

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