Seiko Cal. 6643 - 879

Seiko 6643-879

The 6643-879 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6643 caliber with 36j jewels beating at 36,000 bph, it delivers a 50 hours power reserve. [seikata-wm-be8318352881]

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
10.6mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
120m
Dial Color
White
Jewels
36j
Frequency
36,000 bph
Power Reserve
50 hours
Year
1993

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seikata-wm-be8318352881