Seiko Cal. 4421 - 903

The 4421-903 is a sought-after Kinetic piece from Seiko's golden era. It features a Champagne dial protected by a Mineral crystal and offers 130m of water resistance. [seikata-wm-c15575d5724b]

Also known as: Helmet, Arnie

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

36mm

Case Thickness

8.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Champagne

Jewels

32j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1966

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