Seiko Cal. 4427 - 889

This Spring Drive model from 1998 features a 44mm PVD Black case. Powered by the 4427 caliber with 32j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-34e7750d8c20]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

8.3mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

140m

Dial Color

Burgundy

Jewels

32j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1998

Related Models

• Seiko 4568-223
• Seiko 3870-511
• Seiko 4494-440
• Seiko 6171-514
• Seiko 6241-816
• Seiko 5259-931
• Seiko 6359-744
• Seiko 7055-970
• Seiko 4560-325
• Seiko 0773-652
• Seiko 6648-100
• Seiko 6252-412