Seiko Cal. 6633 - 747

Seiko 6633-747

This Automatic model from 1971 features a 35mm Gold-Plated case. Powered by the 6633 caliber with 32j jewels beating at 36,000 bph, it delivers a 65 hours power reserve. [seikata-wm-e12bf78292f9]

Also known as: Tuna

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
35mm
Case Thickness
8.3mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
100m
Dial Color
Silver
Jewels
32j
Frequency
36,000 bph
Power Reserve
65 hours
Year
1971

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