Seiko Cal. 4427 - 480

This Spring Drive model from 1971 features a 34mm Hardlex-Coated Steel case. Powered by the 4427 caliber with 30j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-a25afd72947c]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

9.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1971

Related Models

• Seiko 5295-117
• Seiko 4579-492
• Seiko 5655-188
• Seiko 5235-612
• Seiko 6138-578
• Seiko 0793-723
• Seiko 3854-557
• Seiko 5619-831
• Seiko 3898-448
• Seiko 7010-136
• Seiko 4510-904
• Seiko 7089-458