Seiko Cal. 4428 - 979

This Automatic model from 1978 features a 45mm PVD Black case. Powered by the 4428 caliber with 24j jewels beating at 21,600 bph, it delivers a 44 hours power reserve. [seikata-wm-dca69328865b]

Also known as: Samurai, Baby Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

45mm

Case Thickness

10.0mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1978

Related Models

• Seiko 4597-846
• Seiko 3829-446
• Seiko 6320-906
• Seiko 6330-202
• Seiko 5688-289
• Seiko 6158-677
• Seiko 6157-160
• Seiko 6662-443
• Seiko 7110-345
• Seiko 3889-598
• Seiko 6632-855
• Seiko 5243-306