Seiko Cal. 6643 - 127

Seiko 6643-127

The 6643-127 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6643 caliber with 28j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-bbfcac86b053]

Also known as: Navigator, Emperor

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
43mm
Case Thickness
14.9mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
60m
Dial Color
Navy
Jewels
28j
Frequency
28,800 bph
Power Reserve
40 hours
Year
1973

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