Seiko Cal. 6643 - 163

Seiko 6643-163

The 6643-163 is a sought-after Solar piece from Seiko's golden era. It features a Burgundy dial protected by a Acrylic crystal and offers 150m of water resistance. [seikata-wm-7bc81f436ab9]

Also known as: Golden Tuna

Specifications

Movement
Solar
Case Material
Gold-Plated
Case Width
46mm
Case Thickness
15.0mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
150m
Dial Color
Burgundy
Jewels
22j
Frequency
36,000 bph
Power Reserve
36 hours
Year
1968

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