Seiko Cal. 6643 - 466

Seiko 6643-466

The 6643-466 is a sought-after Solar piece from Seiko's golden era. Powered by the 6643 caliber with 24j jewels beating at 28,800 bph, it delivers a 51 hours power reserve. [seikata-wm-dfd2cb4c3222]

Also known as: Baby Tuna, Flighty

Specifications

Movement
Solar
Case Material
Titanium
Case Width
45mm
Case Thickness
15.7mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
60m
Dial Color
Green
Jewels
24j
Frequency
28,800 bph
Power Reserve
51 hours
Year
1981

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