Seiko Cal. 6635 - 658

Seiko 6635-658

This Automatic model from 1973 features a 45mm Hardlex-Coated Steel case. Powered by the 6635 caliber with 32j jewels beating at 28,800 bph, it delivers a 41 hours power reserve. [seikata-wm-df4a1cc5585b]

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
45mm
Case Thickness
14.9mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
90m
Dial Color
Navy
Jewels
32j
Frequency
28,800 bph
Power Reserve
41 hours
Year
1973

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