Seiko Cal. 6635 - 143

Seiko 6635-143

This Automatic model from 1967 features a 38mm Hardlex-Coated Steel case. The Bidirectional bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-f4a3fc06d37a]

Also known as: Golden Tuna

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
38mm
Case Thickness
13.7mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
70m
Dial Color
Black
Jewels
29j
Frequency
21,600 bph
Power Reserve
63 hours
Year
1967

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