Seiko Cal. 4421 - 916

The Seiko 4421-916 represents an important milestone in Seiko's 1971 lineup. It features a Black dial protected by a Hardlex crystal and offers 120m of water resistance. [seikata-wm-a91b718f85e5]

Also known as: Pogue, World Timer

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

13.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Black

Jewels

20j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1971

Related Models

• Seiko 5288-859
• Seiko 6233-566
• Seiko 6368-314
• Seiko 0779-988
• Seiko 5677-412
• Seiko 6365-281
• Seiko 0795-902
• Seiko 6333-799
• Seiko 6658-671
• Seiko 7164-717
• Seiko 4563-609
• Seiko 7197-818