Seiko Cal. 4428 - 857

This Solar model from 1970 features a 41mm Hardlex-Coated Steel case. Powered by the 4428 caliber with 32j jewels beating at 28,800 bph, it delivers a 39 hours power reserve. [seikata-wm-367339ec593a]

Also known as: Pogue, Golden Tuna

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

15.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

32j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1970

Related Models

• Seiko 6626-523
• Seiko 6392-383
• Seiko 0734-212
• Seiko 6128-544
• Seiko 5250-636
• Seiko 6338-128
• Seiko 7057-918
• Seiko 6248-805
• Seiko 4462-560
• Seiko 6228-558
• Seiko 4432-823
• Seiko 5258-310