Seiko Cal. 6635 - 539

Seiko 6635-539

This Automatic model from 1967 features a 35mm Titanium case. Powered by the 6635 caliber with 36j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-d525b4233f9f]

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
35mm
Case Thickness
9.3mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
140m
Dial Color
Black
Jewels
36j
Frequency
21,600 bph
Power Reserve
71 hours
Year
1967

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