Seiko Cal. 4443 - 603

Seiko 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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