Seiko Cal. 4420 - 227

The Seiko 4420-227 represents an important milestone in Seiko's 1966 lineup. It features a Burgundy dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-9099223127f2]

Also known as: Turtle

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

14.0mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

170m

Dial Color

Burgundy

Jewels

17j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1966

Related Models

• Seiko 7175-893
• Seiko 0733-851
• Seiko 3859-196
• Seiko 6690-873
• Seiko 6627-705
• Seiko 4591-467
• Seiko 6212-673
• Seiko 6357-847
• Seiko 4560-617
• Seiko 4558-890
• Seiko 0761-434
• Seiko 6184-618