Seiko Cal. 4433 - 566

The 4433-566 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4433 caliber with 18j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-bc0f607b322d]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

43mm

Case Thickness

10.6mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

90m

Dial Color

White

Jewels

18j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1971

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