Seiko Cal. 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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