Seiko Cal. 4420 - 184

The 4420-184 is a sought-after Spring Drive piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 90m of water resistance. [seikata-wm-6aa95d3c10a2]

Also known as: Turtle, Shogun

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

14.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1973

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