Seiko Cal. 6638 - 680

Seiko 6638-680

The 6638-680 is a sought-after Solar piece from Seiko's golden era. It features a Champagne dial protected by a Sapphire crystal and offers 150m of water resistance. [seikata-wm-d67a2be8c557]

Also known as: UFO, Arnie

Specifications

Movement
Solar
Case Material
Two-Tone
Case Width
45mm
Case Thickness
10.3mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
150m
Dial Color
Champagne
Jewels
27j
Frequency
36,000 bph
Power Reserve
59 hours
Year
1983

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