Seiko Cal. 6643 - 399

Seiko 6643-399

This Automatic model from 1970 features a 46mm Hardlex-Coated Steel case. The Bidirectional bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-69439079f27a]

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
46mm
Case Thickness
15.3mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
200m
Dial Color
Green
Jewels
31j
Frequency
21,600 bph
Power Reserve
41 hours
Year
1970

Related Models

seikata-wm-69439079f27a