Seiko Cal. 4421 - 661

Released in 1983, the Cal. 4421 with design code 661 was part of Seiko's domestic market collection. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 30m of water resistance. [seikata-wm-78fa5ffce4b5]

Also known as: World Timer

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

39mm

Case Thickness

15.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1983

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