Seiko Cal. 6663 - 235

Seiko 6663-235

The 6663-235 is a sought-after Solar piece from Seiko's golden era. The Inner Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-b062142b634f]

Also known as: UFO, Arnie

Specifications

Movement
Solar
Case Material
Stainless Steel
Case Width
37mm
Case Thickness
15.4mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
50m
Dial Color
Green
Jewels
21j
Frequency
21,600 bph
Power Reserve
43 hours
Year
1965

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