Seiko Cal. 5223 - 143

The 5223-143 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5223 caliber with 17j jewels beating at 28,800 bph, it delivers a 39 hours power reserve. [seikata-wm-ec5c13a3c61e]

Also known as: Helmet, World Timer

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

9.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

130m

Dial Color

Green

Jewels

17j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1966

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