Seiko Cal. 6636 - 670

Seiko 6636-670

This Hand-Winding model from 1994 features a 44mm Hardlex-Coated Steel case. The Rotating bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-c917418230ae]

Also known as: Sumo, Sportsmatic

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
44mm
Case Thickness
11.1mm
Lug Width
21mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
80m
Dial Color
Burgundy
Jewels
36j
Frequency
28,800 bph
Power Reserve
63 hours
Year
1994

Related Models

seikata-wm-c917418230ae