Seiko Cal. 4427 - 628

Released in 1982, the Cal. 4427 with design code 628 was part of Seiko's domestic market collection. With its 20mm lug width and 12.2mm profile, it sits comfortably on most wrists. [seikata-wm-25c8108ca1ca]

Also known as: Samurai, World Timer

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

12.2mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Navy

Jewels

18j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1982

Related Models

• Seiko 4521-685
• Seiko 6243-475
• Seiko 6341-817
• Seiko 4429-144
• Seiko 6184-219
• Seiko 5683-866
• Seiko 6624-679
• Seiko 6380-795
• Seiko 3813-464
• Seiko 6611-293
• Seiko 5279-344
• Seiko 6299-451