Seiko Cal. 6643 - 878

Seiko 6643-878

This Automatic model from 1989 features a 40mm Hardlex-Coated Steel case. With its 18mm lug width and 11.7mm profile, it sits comfortably on most wrists. [seikata-wm-c6936d55a591]

Also known as: Helmet, Crown

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
11.7mm
Lug Width
18mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
200m
Dial Color
Burgundy
Jewels
32j
Frequency
36,000 bph
Power Reserve
43 hours
Year
1989

Related Models

seikata-wm-c6936d55a591