Seiko Cal. 4451 - 634

Seiko 4451-634

This Spring Drive model from 1966 features a 44mm Hardlex-Coated Steel case. The Rotating bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-6069a8cae3c6]

Also known as: Sportsmatic

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
44mm
Case Thickness
8.3mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
40m
Dial Color
Burgundy
Jewels
28j
Frequency
21,600 bph
Power Reserve
42 hours
Year
1966

Related Models

seikata-wm-6069a8cae3c6