Seiko Cal. 4435 - 154

The 4435-154 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4435 caliber with 24j jewels beating at 28,800 bph, it delivers a 67 hours power reserve. [seikata-wm-fc92ee37b0e1]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

9.3mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

60m

Dial Color

Black

Jewels

24j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1971

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