Seiko Cal. 5635 - 448

Seiko 5635-448

This Spring Drive model from 1983 features a 43mm PVD Black case. The Inner Rotating bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-9d8e5f11b9ae]

Also known as: Helmet, Sportsmatic

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
43mm
Case Thickness
13.7mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
30m
Dial Color
Black
Jewels
20j
Frequency
36,000 bph
Power Reserve
47 hours
Year
1983

Related Models

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