Seiko Cal. 4428 - 376

The Seiko 4428-376 represents an important milestone in Seiko's 1990 lineup. Powered by the 4428 caliber with 30j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-ef7c21bee8d3]

Also known as: Shogun, Golden Tuna

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

38mm

Case Thickness

12.3mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1990

Related Models

• Seiko 5236-439
• Seiko 6223-199
• Seiko 6631-719
• Seiko 0739-901
• Seiko 0775-156
• Seiko 5684-196
• Seiko 6169-293
• Seiko 6671-846
• Seiko 3897-934
• Seiko 4422-132
• Seiko 5685-678
• Seiko 0712-363