Seiko Cal. 6663 - 790

Seiko 6663-790

The 6663-790 is a sought-after Automatic piece from Seiko's golden era. The Bidirectional bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-7b140aecdefe]

Also known as: Baby Tuna

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
43mm
Case Thickness
15.6mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
70m
Dial Color
Burgundy
Jewels
32j
Frequency
21,600 bph
Power Reserve
55 hours
Year
1967

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