Seiko Cal. 4513 - 638

Seiko 4513-638

This Hand-Winding model from 1997 features a 37mm Hardlex-Coated Steel case. The Bidirectional bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-a476c42513d6]

Also known as: Helmet

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
37mm
Case Thickness
9.6mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
100m
Dial Color
Green
Jewels
17j
Frequency
21,600 bph
Power Reserve
48 hours
Year
1997

Related Models

seikata-wm-a476c42513d6