Seiko Cal. 7173 - 643

Seiko 7173-643

The 7173-643 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7173 caliber with 17j jewels beating at 28,800 bph, it delivers a 45 hours power reserve. [seikata-wm-c450509f1b99]

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
38mm
Case Thickness
13.0mm
Lug Width
19mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
160m
Dial Color
Burgundy
Jewels
17j
Frequency
28,800 bph
Power Reserve
45 hours
Year
1991

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seikata-wm-c450509f1b99