Seiko Cal. 4433 - 320

The 4433-320 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4433 caliber with 25j jewels beating at 28,800 bph, it delivers a 39 hours power reserve. [seikata-wm-7f997384bd68]

Also known as: Navigator, Arnie

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

39mm

Case Thickness

15.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Navy

Jewels

25j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1977

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