Seiko Cal. 6391 - 490

Seiko 6391-490

This Hand-Winding model from 1999 features a 39mm Hardlex-Coated Steel case. The Inner Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-7748e48e7163]

Also known as: Helmet

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
39mm
Case Thickness
12.6mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
100m
Dial Color
Navy
Jewels
31j
Frequency
21,600 bph
Power Reserve
46 hours
Year
1999

Related Models

seikata-wm-7748e48e7163