Seiko Cal. 4471 - 830

Released in 1974, the Cal. 4471 with design code 830 was part of Seiko's domestic market collection. It features a Silver dial protected by a Mineral crystal and offers 130m of water resistance. [seikata-wm-6e9eba881392]

Also known as: Sumo, Helmet

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

41mm

Case Thickness

11.7mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Silver

Jewels

34j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1974

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