Seiko Cal. 4490 - 830

Released in 1965, the Cal. 4490 with design code 830 was part of Seiko's domestic market collection. It features a Green dial protected by a Acrylic crystal and offers 50m of water resistance. [seikata-wm-faf479bb5ec4]

Also known as: Monster, Crown

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

9.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

50m

Dial Color

Green

Jewels

31j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1965

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