Seiko Cal. 4427 - 305

The Seiko 4427-305 represents an important milestone in Seiko's 1979 lineup. Powered by the 4427 caliber with 18j jewels beating at 36,000 bph, it delivers a 38 hours power reserve. [seikata-wm-1b822ab4de1f]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

38mm

Case Thickness

13.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

90m

Dial Color

Navy

Jewels

18j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1979

Related Models

• Seiko 7110-697
• Seiko 6123-974
• Seiko 0720-815
• Seiko 5290-595
• Seiko 6110-781
• Seiko 0794-432
• Seiko 4538-978
• Seiko 7076-808
• Seiko 7033-612
• Seiko 0791-201
• Seiko 6667-162
• Seiko 6636-549