Seiko Cal. 6643 - 924

Seiko 6643-924

The 6643-924 is a sought-after Solar piece from Seiko's golden era. Powered by the 6643 caliber with 17j jewels beating at 28,800 bph, it delivers a 57 hours power reserve. [seikata-wm-c725931c06a2]

Also known as: Samurai, Emperor

Specifications

Movement
Solar
Case Material
Titanium
Case Width
35mm
Case Thickness
8.9mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
140m
Dial Color
Navy
Jewels
17j
Frequency
28,800 bph
Power Reserve
57 hours
Year
1994

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