Seiko Cal. 4420 - 222

Released in 1977, the Cal. 4420 with design code 222 was part of Seiko's domestic market collection. It features a Green dial protected by a Hardlex crystal and offers 110m of water resistance. [seikata-wm-54329fea9dcb]

Also known as: Sea Horse

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

37mm

Case Thickness

15.4mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Green

Jewels

27j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1977

Related Models

• Seiko 4417-305
• Seiko 3824-977
• Seiko 4569-150
• Seiko 3893-926
• Seiko 5671-990
• Seiko 0751-222
• Seiko 4471-134
• Seiko 3899-535
• Seiko 7120-384
• Seiko 0717-287
• Seiko 7188-898
• Seiko 6382-996