Seiko Cal. 6634 - 764

Seiko 6634-764

This Automatic model from 1977 features a 38mm Titanium case. Powered by the 6634 caliber with 35j jewels beating at 36,000 bph, it delivers a 45 hours power reserve. [seikata-wm-42945ab642f0]

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
38mm
Case Thickness
8.3mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
60m
Dial Color
Cream
Jewels
35j
Frequency
36,000 bph
Power Reserve
45 hours
Year
1977

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