Seiko Cal. 4421 - 813

The Seiko 4421-813 represents an important milestone in Seiko's 1965 lineup. It features a Cream dial protected by a Acrylic crystal and offers 80m of water resistance. [seikata-wm-e355957d2496]

Also known as: Sportsmatic, Crown

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

37mm

Case Thickness

14.8mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

80m

Dial Color

Cream

Jewels

36j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1965

Related Models

• Seiko 6111-949
• Seiko 7033-859
• Seiko 5299-283
• Seiko 6153-245
• Seiko 5647-869
• Seiko 6631-755
• Seiko 6183-552
• Seiko 6696-805
• Seiko 7152-496
• Seiko 6195-601
• Seiko 7059-563
• Seiko 5270-747