Seiko Cal. 4418 - 447

This Hand-Winding model from 1991 features a 43mm Hardlex-Coated Steel case. With its 22mm lug width and 12.1mm profile, it sits comfortably on most wrists. [seikata-wm-e67b96a1420a]

Also known as: Helmet, Crown

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

12.1mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

40m

Dial Color

Green

Jewels

33j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1991

Related Models

• Seiko 4579-667
• Seiko 4533-935
• Seiko 5683-356
• Seiko 7162-614
• Seiko 0784-306
• Seiko 0770-488
• Seiko 5628-198
• Seiko 7138-871
• Seiko 6673-969
• Seiko 6289-310
• Seiko 7152-946
• Seiko 4415-947