Seiko Cal. 4443 - 603

The 4443-603 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4443 caliber with 18j jewels beating at 21,600 bph, it delivers a 68 hours power reserve. [seikata-wm-70d86b24486e]

Also known as: Helmet, Rally

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

41mm

Case Thickness

12.7mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

40m

Dial Color

White

Jewels

18j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1972

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