Seiko Cal. 4513 - 640

Seiko 4513-640

This Hand-Winding model from 1970 features a 38mm Titanium case. The Inner Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-93f819c251bb]

Also known as: Bullhead, Helmet

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
38mm
Case Thickness
15.5mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
120m
Dial Color
Navy
Jewels
18j
Frequency
28,800 bph
Power Reserve
64 hours
Year
1970

Related Models

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