Seiko Cal. 6643 - 269

Seiko 6643-269

The Seiko 6643-269 represents an important milestone in Seiko's 1979 lineup. Powered by the 6643 caliber with 23j jewels beating at 28,800 bph, it delivers a 41 hours power reserve. [seikata-wm-4f7966a3814c]

Also known as: Silverwave, Bellmatic

Specifications

Movement
Solar
Case Material
PVD Black
Case Width
44mm
Case Thickness
11.3mm
Lug Width
21mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
90m
Dial Color
Navy
Jewels
23j
Frequency
28,800 bph
Power Reserve
41 hours
Year
1979

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