Seiko Cal. 6634 - 737

Seiko 6634-737

This Automatic model from 1968 features a 45mm Titanium case. Powered by the 6634 caliber with 28j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-d2f6f08d5865]

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
45mm
Case Thickness
10.2mm
Lug Width
21mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
150m
Dial Color
Green
Jewels
28j
Frequency
21,600 bph
Power Reserve
54 hours
Year
1968

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seikata-wm-d2f6f08d5865